97 
(in head; lower jaw included within upper; both ja#s with small teeth, palate 
toothless; interorbital low. 
"Whole body strewn with small black papillae. Lateral line distinct, axial, 
complete. 
D. 19 to 21, first branched ray 2 3/5 in head; A. 18 or 19, first branched 
ray 2 3/4; origin opposite first fifth of dorsal base; caudal 1 3/5, well 
forked, with 9 prominent rudimentary rays extended well forward; least depth 
of caudal peduncle 3 2/5; pectoral 2 l/4; ventral 3 4/5. 
Blue black, with violet reflections, fins dark colored. Length 330 mm. 
* 
(Brauer.) 
tQ i ' v .- 
Subgenus ROULEINA Jordan 
i 
o" Rouleina guentheri (Alcock) 
Xenodermichthys guentheri ALCOCK, Atm. Mag. Nat. Hist., series 6 , 
p. 357, pi.18, fig.3. Bay of Bengal ( N. Lat. 15 ° 43 1 30 n 
o 
vol.10, 1892, 
E. Long. 81 ° 
19 30 "), in 678 fathoms; Illustrat. Zool. Investigator, Fishes, pt.7, 
1900, pi.32, fig.2. 
Xenodermichthys guntheri GOODE and BEAN, Oceanic Ichth., 1895, p.48 (reference) 
ALCOCK, Cat. Deep Sea Fishes Indian Mus., 1899, p.180 (Bay of Bengal, off 
9 
Madras coast, 6.78 fathoms; Arabian Sea, off Travancore coast, 430 fathoms). 
Rouleina guentheri NORMAN,Discovery Rep., vol. 2 , 1930, p.271 (reference). 
Depth 5 l/5; head 3. 5 1/4 head from snout tip; eye 3 3/4, 
greater than snout or interorbital; maxillary reaches l/2 in eye, expansion 
2 in eye, length 2 2/5 in head from snout tip; row of minute close set teeth 
on premaxillaries, maxillaries and dentaries, palate toothless; interorbital 
