84 PROCEEDINGS OF THE ACADEMY OF [1897. 



upper side of opercle. Scapular plate with a strong, sharp spine, 

 about as long as preopercular spine. A broad, flat spine on each 

 side of occiput reaching past origin of dorsal. Plates and spines of 

 head and anterior edge of spine rough granulose. A series of spin- 

 ous plates on each side of dorsal. All dorsal spines except the first 

 with their ends about even when depressed. Scales of lateral line 

 with four or five small radiating keels, these gradually diminishing 

 to one posteriorly. Pectorals evidently black. 



GOBIIDJE. 



Bostryohus sinensis Lacepede. 



Bostrychus sinensis Lacepede, III, 141, pi. 14, fig. 2, 1802. 

 Eleotris sinensis, Giinther, Cat. Fishes, III, 127, 1861. 



Bostrichthys sinensis, Bleeker, Gobioides, Archiv. Neer. , 1874, p. 301 ; Day, 

 Fishes of India, p. 309, pi. 65, fig. 4, 1888. 



Two specimens, 6 inches long. 



Head Si, depth 51, eye 6i ; D. VI-I, 11 ; A. I, 9. 



Prionobutis serrifrons Rutter. New species. 



One specimen, 3 inches long; No. 4,995, Leland Stanford Junior 

 University Museum. 



Differs from Prionobutis caperahis Cantor in having a nearly 

 horizontal mouth and in having two series of serrse on snout in front 

 of eye. 



Head 3J-, depth 4, eye 4i ; D. VI-I, 9 ; A. I, 8 ; scales 28-9. 



Head rather pointed, bony crests prominent, orbital rims above 

 and posteriorly finely denticulated, a row of minute vertical teeth 

 above nostrils and one on each side of area occupied by premaxillary 

 processes on top of snout. A mucous canal with an opening at end 

 of snout and another above posterior nostril lies between the series 

 of spines on each side of snout ; this canal continues backward 

 above eyes, the two communicating in interorbital areas, thence 

 backward behind eye and along upper margin of opercle, opening 

 above gill-opening. There is also a tube along the entire margin of 

 preopercle, and continued forward, with many small openings along 

 under side of mandible to symphysis. Mouth but little oblique, 

 maxillary to below anterior third of eye ; teeth in a band in each 

 jaw, the outer series a little enlarged. Back elevated, highest at 

 middle of spinous dorsal. Soft dorsal high, the posterior and longest 

 rays If in head, the anal similar. Pectoral broad at base, its length 

 H in head ; ventrals 1 \ in head ; caudal 1 \ in head. Least depth of 

 caudal peduncle less than A its length, which is H in head. Pale 



