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Cirrhoscyllium japonicum:   (click for more)

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Synonyms
Other Combinations:  None.
FAO Names
En - Saddle carpetshark, Fr - Requin carpette chat, Sp - Alfombrera japonesa.
3Alpha Code: OPJ     Taxonomic Code: 1070700103
Scientific Name with Original Description
Cirrhoscyllium japonicum  Kamohara, 1943, Bull. Biogeogr. Soc. Japan, 13(17): 126, fig. 1. Holotype: 485 mm female from Mimase, Shikoku, Japan, possibly at Kochi University, Kochi City, Japan (Dr T. Abe, pers. comm.). According to Goto and Nakaya (1996: 205), Kamohara (1961, Rep. Usa Mar. Biol. St. 8: 1-9, not seen) designated a neotype (Kochi University, Department of Biology, Faculty of Science, BSKU-3656, 291mm immature female, from Mimase Fish Market) to replace the holotype, which was destroyed during the second world war. Goto a
Diagnostic Features
fieldmarks: Barbels on throat, nasoral grooves, mouth in front of eyes, nine well-defined saddle marks on sides of body, with C-shaped saddles on abdomen.

Head length 2.2 to 2.6 times first dorsal-fin base. Anal-caudal space 7.5 to 9.7% of total length. Anal-caudal space 45 to 62% of head length. Second dorsal-fin base usually shorter and rarely equal to anal-caudal space.  Precaudal vertebral count 117 to 123. Total vertebral count 165 to 175.  Nine well-defined pairs of saddle-markings on sides of back and tail; a strongly marked C-shaped saddle on each side of back between pectoral and pelvic-fin bases and discrete from saddles over pelvic-fin bases. 
Geographical Distribution

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Western North Pacific: Japan, off southwest coast from Shikoku and Kyushu southwest to Yakushima Island and possibly the Riu-Kyu Islands.
Habitat and Biology
Uppermost slope of southwestern Japan at depths of 250 to 290 m.

Biology poorly known.
Apparently oviparous, as cased eggs were discovered in a 445 mm female.  A morphological study of the throat barbels of this shark (Goto, Nakaya and Amaoka, 1994) suggested that they were mechanical sensors, without obvious chemical or other sense organs, and that they were unique to the genus Cirrhoscyllium.
Size
Maximum 48.5 cm; females immature at 25.7 to 42.4 cm, adolescent at 43.1 cm, and adult at 44.5 cm, maximum 48.5 cm; males immature at 22.8 cm, adolescent at 36.6 cm, and adult at 36.7 to 40.7 cm.
Interest to Fisheries
Interest to fisheries unknown. Possibly taken as a bycatch of trawl fisheries.

Conservation Status : Conservation status unknown.
Local Names
Japan : Kurakake-zame ,  Kurakakezame ,  Saddled catshark .
Remarks
A female specimen nominally referred to Cirrhoscyllium expolitum (Uchida, 1982) was collected off the Riu-Kyu Islands and kept in an aquarium in Okinawa where it laid eggs; it may refer to this species.
Source of Information
Sharks of the world An annotated and illustrated catalogue of shark species known to date. Volume 2 Bullhead, mackerel and carpet sharks (Heterodontiformes, Lamniformes and Orectolobiformes). Leonard J.V. Compagno 2001.  FAO Species Catalogue for Fishery Purposes. No. 1, Vol. 2. Rome, FAO. 2001. p.269.
Bibliography
Compagno, 1984
Goto, Nakaya & Amaoka, 1994
Goto & Nakaya, 1996
Kamohara, 1943
Teng, 1959b
Uchida, 1982
 
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