Oder Anguilliformes Family Ophichthidae(Snake eels). Korean Snake eel Pisodonophis sangjuensis(Ji & Kim, 2011). Max length/60.1 cm TL. Korean name/sang-ju-mul-baem(상주물뱀) Pectoral-fin rays/12-14. Vertebrae/143 - 153.
Distribution; Northwest Pacific/Endemic to South Korea, found in the coasts of Yeo-su city in Jeo-ra-nam-do province, Sangju county in Gyeon-sang-nam-do province, and Jeju Island. General; The species Pisodonophis sangjuensis is designated as a new species in 2011 based on study of 24 specimens caught by set or trawl nets at water depths of 5–110 m in the South Sea(mainly “Sangju” township) of Korea between 2005 and 2010. Body elongate and cylindrical, and slightly tapering toward the tail. Slightly acute snout. Upper jaw slightly longer than lower jaw. Anterior nostrils tubular, on lateral surface of the upper lip. Posterior nostrils at the edge of upper lip, covered by a flap. Upper lip with fleshy protrusions before and behind the posterior nostril. Caudal fin absent. Origin of dorsal-fin above middle of the pectoral fin. Pectoral fin not elongated and rounded. Body depth at gill opening 30.3–37.0 times in TL. Minute and inconspicuous cephalic-sensory pores; supraorbital pores 5(1+4), infraorbital pores 6(4+2), preoperculomandibular pores 8(3+5), supratemporal pores 5(1+4). Conical and pointed teeth in a regular row on both jaws, 2 regular rows anteriorly but 2-3 irregular rows posteriorly on vomer; prevomerine and vomerine teeth slightly separated from each other. Color when fresh; body uniform dark brownish dorsally, but head and body pale brownish ventrally. Dorsal, anal, and pectoral fins blackish red. Color in formalin: body uniform dark blackish dorsally, head and body pale whitish ventrally. Dorsal, anal, and pectoral fins whitish. Burrows into sandy, muddy substrate using its hard pointed tail. The spawning season and site estimated in May and the south of Jeju Island.
※ Main reference/Ji, H.-S. and J.-K. Kim, 2011. A new species of snake eel, Pisodonophis sangjuensis (Anguilliformes: Ophichthidae) from Korea. Zootaxa 2758:57-68.
|