Hymenocephalus lethonemus Jordan & Gilbert, 1904
Hymenocephalus lethonemus
photo by Yang, N.-S.

 Family:  Macrouridae (Grenadiers or rattails), subfamily: Macrourinae
 Max. size:  14 cm TL (male/unsexed)
 Environment:  bathydemersal; depth range 220 - 810 m
 Distribution:  Western Pacific: southern Japan to the Philippines.
 Diagnosis:  This species is distinguished by the following characters: pelvic fin rays 11 (rarely 12); pectoral fin rays 13-15; projecting snout, 20-25% HL; no barbel; moderate orbit diameter, 30-33% HL; infraorbital width 13-15% HL; moderately long preopercular supporter, with obtuse angle at rear margin, 3-5% HL; 20-26 gill rakers; ventral striae reaching to ½ distance from pelvic fin bases to periproct; otolith has moderately high predorsal lobe, with colliculi separated, widely placed across collum, terminating at some distance from anterior and posterior rims of otolith; otolith length to height (OL:OH), 1.05-1.1; total colliculum length to pseudocolliculum length (TCL:PCL), 2.4-2.6 (Ref. 98298).
 Biology:  Minimum depth from Ref. 26282.
 IUCN Red List Status: Not Evaluated  (Ref. 96402)
 Threat to humans:  harmless
 Country info:   
 

 Entered by: Garilao, Cristina V. - 19.05.96
 Modified by: Garilao, Cristina V. - 19.02.07

Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.


Page created by Jen, 05.08.02, php script by kbanasihan 06/09/2010 ,  last modified by dsantos, 20/08/10