FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 41 



tubular scales 40 in ujiper section of lateral line, 15 in lower section : 

 6 rows of scales on cheek; large scales on opercles. D. Ill, 27, long- 

 est ray 2 in head ; A. Ill, 16 ; caudal truncate ; caudal peduncle long 

 as deep ; pectoral 1% ; ventral little less than pectoral. Olive above, 

 yellowish beneath. Black spot on opercle, close to upper end of 

 preopercular border. Fins gray white. Two black streaks on caudal, 

 near upper and lower borders. Length 100 mm. (Boulenger.) 



Genus NEMATOCHROMIS Weber 



Nematochromis Weber, Siboga Exp., vol. 57, Fische, 191.S, p. 264. Type 

 Nematochromis annae Weber, monotypic. 



Body oblong, compressed. Head pointed. Eye moderate. Mouth 

 cleft straight, oblique. Jaws subequal. Teeth in jaws, also some 

 canines ; vomer and palatines toothed. Preopercle unarmed. Scales 

 ctenoid. Head above, on sides and opercles scaly. Lateral line 

 inconspicuous. Dorsal and anal with 2 weak spines and numerous 

 simple and undivided rays. Caudal truncate. Ventral with feeble 

 spine and 3 simple rays, of which first and second elongated. 



Like Pseudochromis in the presence of palatine teeth, but differs in 

 the scaleless vertical fins, in the nearly entire dorsal and anal rays 

 and in the structure of the ventral fin. 



NEMATOCHROMIS ANNAE Weber 



Nematochromis annae WEBiai, Siboga Exp., vol. 57, Fische, 1913, p. 265, fig. 66. 

 Sarasa, Postillion Islands; Solor Straits. 



Depth 3%; head Zy^. Snout 4% in head from snout tip; eye 

 31/^, greater than snout; maxillary reaches opposite Vs in eye, expan- 

 sion 2 in eye, length 2% in head from snout tip; jaws with separated 

 canines between fine teeth; vomer and palatines with teeth; inter- 

 orbital slightly less than half of eye, very low. 



Scales 30 in median lateral series to caudal base and 2 more on 

 latter; upper section of lateral line with 30 tubular scales (figure 

 shows about 24), lower section 15 (figure shows 16 on body and 1 on 

 caudal base) , 6 predorsal to occiput, 3 rows on cheek (figure shows 4) . 

 Top of head, muzzle and interopercle shown as naked in figure, also 

 all fins except caudal base narrowly. 



D. II, 26 or 27 (figure not showing spines, and shows rays 25), 

 twenty-fourth ray 1% in total head length; A. II, 15 (figure not 

 showing spines), thirteenth ray 1%; caudal 1%, little rounded be- 

 hind ; least depth of caudal peduncle 2% ; pectoral II/4 ; ventral 2% 

 in combined head and body without caudal, rays I, 3. 



Yellowish brown, head, belly and caudal edge lighter. Vertical 

 fins obscurely dusted darker, anal with front half darker. Paired 

 fins hyaline. (Weber.) 



Known from Weber's 2 examples, 33 to 40 mm. long. 



