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A New Record of Pandalid Shrimp Procletes <italic>levicarina</italic> (Crustacea: Decapoda: Caridea) from Korean Waters
A New Record of Pandalid Shrimp Procletes levicarina (Crustacea: Decapoda: Caridea) from Korean Waters
Fisheries and aquatic sciences. 2011. Dec, 14(4): 399-401
Copyright ©2011, The Korean Society of Fisheries and Aquatic Science
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • Received : October 10, 2011
  • Accepted : November 11, 2011
  • Published : December 31, 2011
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About the Authors
Jung Nyun Kim
crangonk@nfrdi.go.kr
Jung Hwa Choi
Taeg Yun Oh
Kwang Ho Choi
Dong Woo Lee
crangonk@nfrdi.go.kr
Abstract
The pandalid shrimp Procletes levicarina (Bate, 1888) was newly collected from the western and southern waters of Jeju Island, Korea. This species is the only known member of the genus Procletes which belongs to the family Pandalidae. Morphological description and illustration with a color photograph of the species are given. With the addition of P. levicarina , the family Pandalidae in Korean waters consists of 10 species belonging to 5 genera.
Keywords
Introduction
Korean pandalid shrimps have been known to be composed 9 species in 4 genera (Kim and Kim, 1997; Cha et al., 2001). From the western and southern waters of Jeju Island, Korea, a pandalid species, Procletes levicarina (Bate, 1888), was newly collected by bottom otter trawl from depths of 83-97 m. This represents a new member of the Korean carcinological fauna. Morphological description and illustration with a color photograph of the species are given.
Specimens examined have been deposited in the Fisheries Resource Management Division, National Fisheries Research and Development Institute (NFRDI). Postorbital carapace length (CL) was used as the standard length of the specimens for measurements, and the terminology primarily followed Chace (1985).
Systematic Accounts
Family Pandalidae
Genus Procletes Bate, 1888
(New Korean name: Gasi-dowha-saewoo-sok )
Procletes levicarina (Bate, 1888)
(New Korean name: Gasi-dowha-saewoo ) ( Figs. 1 , 2 )
Dorodotes levicarina Bate, 1888: 680 (type locality: Arafura Sea west of Torres Strait; 51 m).
Heterocarpus ( Heterocarpoides ) levicarina - De Man, 1920: 110, 178, pl. 15, fig. 44-44f.
Heterocarpoides levicarina - Calman, 1939: 207; Liu, 1963: 231; Chace, 1985: 16, figs. 11, 12.
Heterocarpus ( Heterocapoides [sic]) glabrus Zarenkov, 1971: 193, fig. 4 (16-27) (type locality: South China Sea; 75 m).
Heterocarpus ( Procletes ) levicarina - Menon, 1972: 382-390.
Procletes levicarina - Holthuis, 1993, 278, fig. 277; Miyake, 1998: 187 (list); Li and Komai, 2003: 271.
Material examined. Western water of Jeju Island, 33°0.1’N 125°06.2’E, 83 m, bottom otter trawl, March 14, 2002, 1 male (CL 12.0 mm), 1 female (CL 13.7 mm), NFRDI-CR 20111015-1; Southern water of Jeju Island, 32°21.1’N 126°3.7’E, 97 m, bottom otter trawl, March 15, 2002, 2 males (CL 14.2, 15.0 mm), 2 females (CL 14.8, 16.8 mm) NFRDI-CR 20111015-2.
Description. Rostrum ( Fig. 1 A) longer than carapace length, overreaching antennal scale, somewhat upward distally; dorsal margin armed with 11-14 teeth, including 4 or 5
PPT Slide
Lager Image
Procletes levicarina (Bate 1888) from the western water of Jeju Island. (A B) Female (postorbital carapace length 13.7 mm) (C) male (postorbital carapace length 12.0 mm). (A) Carapace and cephalothoracic appendages lateral. (B) Third to sixth abdominal somites and telson lateral. (C) Left appendix masculina and appendix interna mesial.
PPT Slide
Lager Image
Procletes levicarina (Bate 1888) female (postorbital carapace length 14.8 mm) from the southern water of Jeju Island.
teeth on carapace posterior to level of orbital margin, posteriormost tooth with distinct basal suture; ventral margin armed with 5-7 teeth. Carapace ( Fig. 1 A) dorsally carinate nearly to posterior margin; posterior end of dorsomedian carina with small papilla; strong antennal and branchiostegal spines present; lateral carinae not sharp but distinct. Abdomen ( Fig. 1 B) with dorsomedian carina on all somites; third to fifth somites each with strong posteromedian tooth; pleura of fourth to sixth somites with small tooth posteroventrally; tergum of fourth and fifth somites with numerous tegumental scales. Telson ( Fig. 1 B) armed with 4 pairs of small dorsolateral spines, posterior pair superimposed above bases of lateral pair of posterior spines, posterior margin acutely triangular, with pair of long, stout, lateral spines and median pair of contiguous spines concealed beneath triangular margin. Eye ( Fig. 1 A) with papilla on ventromedian surface of eyestalk proximal to cornea. Antennular peduncle ( Fig. 1 A) falling short of half of antennal scale; stylocerite acute, overreaching basal segment. Antennal scale ( Fig. 1 A) with distolateral tooth overreaching distal margin of blade. Third maxilliped with epipod and exopod. Pereopods ( Fig. 1 A) with epipods on first to fourth pairs; second pair subequal and similar, carpus composed of 6 or 7 articles; third pair with dactylus about 2/5 as long as propodus; carpus unarmed or armed with 1 or 2 small spines, merus with 11-16 small spines, ischium with 1 small spine; fourth pair more slender than third pair, carpus with 1 small spine, merus with 9-11 small spines, ischium with 1 or 2 small spines; fifth pair more slender than fourth pair, carpus with 1 small spine, merus with 7 or 8 small spines, ischium without spine. Appendix interna on second pleopod ( Fig. 1 C) broad distally; appendix masculina armed with more than 20 long spines on anteromesial and distal margins.
Coloration. Milky brown or light brown in base color scattered with red or pink small spots; rostrum somewhat transparent; thoracic appendages red ( Fig. 2 ).
Distribution. Red Sea to Indonesia, South China Sea, Philippines and Japan; 14-393 m (Li and Komai, 2003) and Korea (present study). Western and southern waters of Jeju Island from 83 to 97 m in this study.
Size. Maximum CL 18.1 mm in female (Li and Komai, 2003).
Remarks. The genus Procletes includes only one species, P. levicarina. The genus is distinguished from the other Pandalidae genera by the following combination of characteristics: (1) the postrostral carina on the carapace extends nearly to the posterior margin; (2) longitudinal carinae on the lateral surface of the carapace are usually present; (3) the second pereopod is subequal and similar; and (4) the carpus of the second pereopod is composed of no more than 6 articles. The present specimens generally coincided with previous descriptions of P. levicarina (cf. Bate, 1888; De Man, 1920; Chace, 1985; Li and Komai, 2003), except for the number of carpal articles of the second pereopod. The carpus of the second pereopod in the present specimens consisted of 6 articles, except for one female specimen with 7 articles (CL 16.8 mm, NFRDI-CR 20111015-2). The number of articles of the carpus of the second pereopod has been known to vary between 5 and 6 (Chace, 1985; Li and Komai, 2003). Thus, including the present results, the article number of the carpus of the second pereopod varies between 5 and 7 within this species. Also, Chace (1985) and Li and Komai (2003) reported that the development of the lateral carinae on the carapace is variable from weak to rather distinct. The development of the median carina on the first abdominal somite is also variable from conspicuous to discernible as a trace or absent. However, these characteristics did not vary in the Korean specimens; the lateral carinae on the carapace were distinct and the median carina on the first abdominal somite was conspicuous.
Acknowledgements
This work was funded by the National Fisheries Research and Development Institute (RP-2011-FR-046).
References
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