FAO Species Identification Guide for Fishery Purposes Western

Squalidae 1221
35a. Interdorsal space longer than distance from snout tip to pectoral-fin insertions; distance
from second dorsal-fin insertion to upper caudal-fin origin about 1/3 as long as
interdorsal space . . . . . . . . . . . . . . . . . Etmopterus baxteri and Etmopterus “granulosus”
35b. Interdorsal space about equal to head length; distance from second dorsal-fin insertion
to upper caudal-fin origin about 1/2 the length of interdorsal space . . . . . . . . . . . . . . . → 36
36a. Dermal denticles on sides with fairly thick cusps (Fig. 44) . . . . . . . . . . . Etmopterus princeps
36b. Dermal denticles on sides with slender, bristle-like cusps (Fig. 45) . . . . . . . Etmopterus unicolor
(occurrence in the area uncertain)
dermal denticles
List of species occurring in the area
The symbol is given when species accounts are included.
Centrophorus atromarginatus Garman, 1906
Centrophorus granulosus (Bloch and Schneider, 1801)
? Centrophorus isodon (Chu, Meng, and Liu, 1981) 1/
? Centrophorus lusitanicus Bocage and Capello, 1864 2/
Centrophorus moluccensis Bleeker, 1860
Centrophorus niaukang Teng, 1959
Centrophorus squamosus (Bonnaterre, 1788)
Centrophorus sp. [New Caledonia] 3/
Centroscyllium cf. kamoharai Abe, 1966 4/
Centroscymnus coelolepis Bocage and Capello, 1864
Cirrhigaleus barbifer Tanaka, 1912
Dalatias licha (Bonnaterre, 1788)
? Deania calcea (Lowe, 1839)
Deania profundorum (Smith and Radcliffe, 1912)
Deania quadrispinosa (McCulloch, 1915)
? Etmopterus baxteri Garrick, 1957 5/
Etmopterus brachyurus Smith and Radcliffe, 1912
? Etmopterus decacuspidatus Chan, 1966 6/
? Etmopterus granulosus (Günther, 1880) 7/
Etmopterus lucifer Jordan and Snyder, 1902
dermal denticles
Fig. 44 Etmopterus princeps Fig. 45 Etmopterus unicolor
1/ Described from Xisha (Paracel) Islands and off the Zujiang River mouth, Hong Kong, in the South China Sea just
adjacent to the area; a similar species, possibly identical, occurs off the Maldive Islands, Sri Lanka, and the Philippines.
2/ Uncertain in the area but should be watched for. Often confused with Centrophorus niaukang and C. granulosus.
3/ This species could not be placed in the present key. Status uncertain. Described from the upper insular slopes of New
Zealand somewhat south of the area.
4/ Recently collected in deep water (1 037 to 1 100 m) off Luzon, Philippines; close to this species but possibly distinct.
5/ This species has been synonymized with Etmopterus granulosus, but this is possibly incorrect.
6/ Known from the South China Sea just north of the area between the Viet Nam coast and Hainan Island, China.
7/ Presence in the western Pacific uncertain.