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vol.69 issue2DESCRIPTION OF EGGS AND FIRST INSTAR LARVAE OF THE GENUS GYRIOSOMUS GUERIN-MENEVILLE, 1834 (COLEOPTERA, TENEBRIONIDAE, NYCTELIINI)New records of cetaceans for the VIII Region, Chile (1997 to 1999) author indexsubject indexarticles search
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Gayana (Concepción)

Print version ISSN 0717-652XOn-line version ISSN 0717-6538

Gayana (Concepc.) vol.69 no.2 Concepción  2005 


Gayana 69(2): 285-290, 2005 ISSN 0717-652X

Ambiente Acuático





Guillermo Guzmán1 & Eduardo Quiroga2

1Museo del Mar, Universidad Arturo Prat, Casilla 121, Iquique, Chile. Email:
2Programa Doctorado en Oceanografía, Universidad de Concepción, Casilla 160-C, Concepción, Chile. Email


Species of shrimps are revised based on bibliographic information and on specimens collected with an Agassiz trawl (AGT) during the PUCK-156 Expedition (2001) onboard R/V Sonne in three areas along Chilean coast; off Antofagasta (22° lat. S), off Concepción (36°lat. S) and off Chiloé (42° lat. S). 111 specimens belonging to 12 species were collected, including three new records for the Chilean fauna; Metacrangon procax, Nematocarcinus productus, and Merhyppolite sp. aff. M. americana. Presence of Nematocarcinus lanceopes, Lebbeus antarcticus, Pandalopsis ampla and Sclerocrangon atrox in the collected material allows extension of their distributional ranges from sub-Antarctic to temperate areas.

Keywords: Archibenthic shrimps, Dendobranchiata, Caridea, Chile.


Se revisan las especies de camarones de aguas profundas, a partir de material bibliográfico y especímenes recolectados durante la expedición PUCK 156 (2001) a bordo del B/C Sonne en tres áreas de la costa de Chile: Antofagasta (22° lat. S), Concepción (36° lat. S) y Chiloé (42° lat. S). 111 especímenes correspondientes a 12 especies fueron reconocidos, incluyendo tres nuevos registros para la carcinofauna chilena; Metacrangon procax, Nematocarcinus productus y Merhyppolite sp. aff. M. americana. La presencia de Nematocarcinus lanceopes, Lebbeus antarcticus, Pandalopsis ampla y Sclerocrangon atrox en el material recolectado permite extender sus rangos de distribución desde áreas sub-Antárticas a temperadas de la costa de Chile.

Palabras claves: Camarones archibentónicos, Dendobranchiata, Caridea, Chile.


The Lund University Chile Expedition 1948-1949 (LUCE) (Brattström & Johanssen 1983) was the most recent and important expedition realized in Chile, which included a broad latitudinal range and provide base information on decapod fauna to the date. Despite the advances to make inventory and complete the distribution ranges along Chilean coast, scarce information on deep-water shrimps in the literature is available, which also is restricted to few geographical locations (Retamal 1993, Retamal & Soto 1995, Werthmann & Carvacho 1997, Guzman 1999, Guzmán & Wicksten 1998, 2000).

A total of 135 decapods shrimps species, belonging to Dendrobranchiata (ex Penaeoidea) and Caridea have been described, which include those reported at island areas, submarine mounts of Nazca and Salas y Gómez ridges, and those cited to circumantarctics waters (Retamal 1981, 1993, 1994, Wehrtmann & Carvacho 1997, Guzmán & Wicksten 1998, 2000, Guzmán 2002). These studies indicate that approximately 51% of decapod species correspond to pelagic and mesopelagic species, 29% to shallow-water species and 20% to benthodemersal shrimps (Guzmán, in prep).

Recently, the number of new records has been increased, due to expeditions realized in Easter Island (Fransen 1987, Retamal 2001), the Nazca and Sala y Gómez ridges (Burukovsky 1990, Vereschaka 1990) and the Antarctic (Tiefenbacher 1991, 1994, Gorny 1999). However, oceanic zones remain under studied (Guzmán & Rivera 2002), although new records to archibentic zone have been reported (Burukovsky 1990, Retamal 1993, Retamal & Soto 1995, Guzmán & Wicksten 2000, Zabala & Bahamonde 1998).

This study updates and summarizes available information concerning to deep-water shrimps species of Chile through of material collected during the PUCK-156 Expedition along the Chilean coast in 2001. This expedition considered three areas located between 22 to 42° latitude south, off Chile. We also include information, description and FIGUREs concerning to new records of shrimp species that inhabiting deep-waters.


The material analyzed was collected in March and May 2001 during the PUCK-156 expedition on board RV Sonne at four stations (528-1775 m) off Antofagasta (22° lat. S), six stations (126-2225 m) off Concepción (36°lat. S) and six stations (160 - 1859 m) off Chiloé (42° lat. S) (Table I) by means of an Agassiz trawl (AGT) with a mouth width of 1.5 m and 10 mm mesh. A detail description of the sampling procedure has been presented by Arntz et al. (1999). Additionally, in each station hydrographical parameters (psu, T°C) and dissolved oxygen were measured using a SEABIRD CTDO probe. The specimens from these samples were preserved in a solution of 10% formalin in filtered seawater with borax. Cephalotaracic length (l.c.) from all specimens was measured. The material was deposited in the Museo del Mar of the Arturo Prat University of Iquique, Chile.

Species identification was carried out using the following literature: Méndez (1981), Chace (1984, 1986), Burukovsky (1992), Holthuis (1993), Hanamura & Evans (1996), Guzmán (1999), Guzmán & Wicksten (1998, 2000).


A total of 111 specimens belonging to 12 species were collected. Although decapod crustaceans were common within all three transect of investigations, shrimp species number varied between the areas. 53 specimens belonging to 8 species were registered at Chiloé. In contrast, 28 specimens belonging to 7 species were observed at Antofagasta (Table I).

Haliporoides diomedeae (Faxon, 1893)

EXAMINED MATERIAL: 4 specimens, station AGT-2 (l.c. = 52.75 mm), AGT-6 (l.c. = 28.75 mm), AGT-11 (l.c. = 11.40 mm), and AGT-12 (l.c. = 52.55 mm).

Nematocarcinus lanceopes Bate, 1888

EXAMINED MATERIAL: 15 specimens, station AGT-18 (l.c. = 16.35 ± 3.61 mm)

REMARKS: The present material extends the northern limit of the geographical distribution of this species from Barnevelt island (55° lat S) (Arntz et al. 1999) to Chiloé (42° lat. S). Five species belong to Nematocarcinus genus has been reported to Chilean waters, of these N. lanceopes and N. longirostris Bate, 1888 (cited to Chile as N. proximatus synonymized by Tiefenbacher, 1990) have a rostrum longer that overreach the antennal peduncle. This species have rostrum, which is projected beyond the antennal peduncle, and is armed with 25 to 35 dorsal spines, and 5 to 8 ventral spines (Tiefenbacher 1990).

Nematocarcinus sp. aff N. productus Bate, 1888 (Fig. 1a)

FIGURE 1. a) Lateral view of Nematocarcinus aff. N. productus, 20 mm l.c. b) Merhippolyte aff. M. americana. 10.05 mm l.c.

FIGURA 1. a) Vista lateral de Nematocarcinus aff. N. productus, 20 mm l.c. b) Merhippolyte aff. M. americana. 10.05 mm l.c.

EXAMINED MATERIAL: 20 specimens, station AGT-4 (l.c. = 20.75 ± 5.4 mm).

REMARKS: Specimens are characterized by the presence of a rostrum longer than antennal peduncle, armed only dorsally with 14 to 27 spines, including those in the dorsal post orbital margin (Chace, 1986; Hanamura & Evans, 1996). N. productus has been confused with N. longirostris (= N. proximatus), but the two can be separated by the rostrum, which is ventrally unarmed. The internae and masculinae appendix of males specimens revised here are similar to those reported for N. productus (Chace, 1986, page 2, FIGUREs 39 g and r). N. productus is probably widely distributed in different oceans, but its distributional ranges "remain inde-terminate" (sensu Chace, 1986). This represents the first record of the species in the southeastern Pacific Ocean off Chile (Antofagasta, 1775 m deep).

Campylonotus semistriatus Bate, 1888

EXAMINED MATERIAL: 2 specimens, station AGT-12 (l.c. = 26.2 and 20.9 mm), 14 specimens station AGT-14 (l.c. = 7.47 ± 0.67 mm), 19 specimens station AGT-18 (l.c. = 15.2 ± 5.79 mm).

Acanthephyra pelagica (Risso, 1816)

EXAMINED MATERIAL: 1 specimen, station AGT-18 (l.c. = 10.05 mm)

Merhippolyte sp. aff. M. americana Holthuis, 1961 (Fig. 1b)

EXAMINED MATERIAL: 1 ovigerous female, station AGT-18 (l.c. = 16.1 mm).

REMARKS: Our specimen is similar to M. americana Holthuis, 1961, but its morphology and meristic measured varied with respect to the original descriptions (Holthuis 1961), specially in the rostral spinations. Our specimen present eight dorsal and ten ventral spines (four to five dorsal, and five to seven ventral, in the original description in Holthuis, 1961 and Boschi et al. 1991); 16 carpal articles (13 to 14 carpal articles in the original description). Merus of third to fifth pereiopod with four strong external spines. These differences are not sufficient to assign to new species because hypolitids group of shrimps present a highly intra-specific variability (Wicksten, com. pers.). The specimens in the original Holthuis description (1961) were collected from shallow waters to 275 m deep. None species belong to this genus have been registered previously to Pacific waters.

Lebbeus antarcticus Hale, 1976

EXAMINED MATERIAL: 1 specimens, station AGT-4 (l.c.= 19.00 mm)

REMARKS: The present material extends the northern limit of this species from southern areas of Chile (Gorny 1999) to Antofagasta (22°48'S). This specie has been found in circum-Antarctic water masses to 2086 m. Our specimen was registered to 1775 m.

Heterocarpus reedi Bahamonde, 1955

EXAMINED MATERIAL: 25 specimens, station AGT-8 (14.35 mm avg. l.c.; s.d.= 3.72).

Pandalopsis ampla Bate, 1888

EXAMINED MATERIAL: one specimen, station AGT-10 (l.c.= 19.50 mm), and one specimen, station AGT-15 (l.c.= 9.15 mm).

REMARKS: Previously, this specie has been registered in deep waters of Antofagasta (22° lat. S) (Zabala & Bahamonde 1998) and Iquique (21° lat. S) (Guzmán, unpublished data). In the Pacific Oceans it has been previously registered from California Gulf, Mexico, Peru and Central Chile.

Pontophylus gracilis occidentalis Faxon, 1893

EXAMINED MATERIAL: 2 specimens, station AGT-4 (l.c. = 10.2 and 13.4 mm).

REMARKS: This genus are represented by six species (Chace, 1984), and six other subspecies are recognized (Chace, 1984). P. gracilis juncaeus Bate, 1888 (Burukovsky, 1990), and P. gracilis occidentalis Faxon, 1893 are cited to South-eastern Pacific (Retamal 1981, and Méndez 1981 as P. occidentalis). P. gracilis occidentalis can be separated by the presence of two spines in the mid dorsal carine of carapace (sensu Chace, 1986).

Sclerocrangon atrox Faxon, 1893 (Fig. 2a)

FIGURE 2. a) Lateral view of Sclerocrangon atrox, 42.00 mm l.c., b) Metacrangon procax, 14.00 mm l.c.

FIGURA 2. a) Vista lateral de Sclerocrangon atrox, 42.00 mm l.c., b) Metacrangon procax, 14.00 mm l.c.

EXAMINED MATERIAL: 1 specimen, station AGT-19 (l.c. = 42.00 mm); 2 specimens, station AGT-05 (l.c. = 38.40 and 29.25 mm).

REMARKS: This specie is distributed from Mexico to Peru (Méndez, 1981). The present material extends the northern limit of this species from Magellan Straits (56° lat. S.) (Bahamonde 1981) to Antofagasta (22° lat. S), Chile.

Metacrangon procax (Faxon, 1893) (Fig. 2b)

EXAMINED MATERIAL:: 1 specimen, station AGT-5 (l.c. = 14.00 mm); 1 specimen, station AGT-18 (l.c. = 14.95 mm).

REMARKS: Specimens are similar to M. agassizi (Smith 1882), in the Atlantic Ocean, but the two species can be separated by the angle of rostrum, the length of first spine in the dorsal carina, and the length of the lateral spines (Faxon 1893; Smith 1882). This represents the first record of the species in the southeastern Pacific Ocean off Chile (Antofagasta, Chiloé).


Three new records for the Chilean fauna; Metacrangon procax, Nematocarcinus pro-ductus, and Merhyppolite sp. aff. M. americana are reported. It is know that the number of species recorded from Chilean waters has increased in the recent years due to increased in the surveys (Guzmán & Rivera 2002). Including those records together with reported in this study, the number of species described from Chilean waters increased to 138 species. Relatively few species reported from Chile, occur in the subantarctic regions (Werthmann & Carvacho 1997). However, the presence of Nematocarcinus lanceopes, Lebbeus antarcticus, Pandalopsis ampla and Sclerocrangon atrox in the collected material allows its extension of their distributional ranges from sub-Antarctic to temperate areas.


We would like to thank to the Alfred-Wegener-Institut for Polar and Marine Research, University of Bremen and Department of Oceanography, University of Concepción, especially to Prof. Dr. W. Arntz, Prof. Dr. V. A. Gallardo, Dr. D. Gerdes and Dr. Dierk Hebbeln. This study was supported by the Centre for Oceanographic Research in the Eastern South Pacific (COPAS). The expedition was funded by the German BMBF (No. 03G0156A). Ongoing cooperation between the AWI and UDEC was funded by the International Bureau of the BMBF (proyect number CHL01/010) and the International Program of Scientitific Cooperation (CONICYT) in Chile.



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Fecha de recepción: 26/05/04
Fecha de aceptación: 12/08/05


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