XMJ SEALK. 



blue, fins grayipli, 2 ankMior spines silver)- while, rays of anal silvei7 

 white, caudal waslied with dusky at tip. 



Color in aleoho] similar but less bright. Xnnierous sijeeimens. Type 

 is Xo. !I14. 



All specimens and type froui the Trinidad Eiver, Baguio; elevation, 

 l,."iOO meters; Luzon, P. I. 



Pleurogobius boulengeri Sealc sp, luiv. 



Head 3; depth 3.7.""); dorsal \'l. l":!: anal 10; scales almnt 30, 9 in 

 vertical series; eye 3 in head; snout 4..")0; interorbital a mere ridge, being 

 less than pupil; junxillary about equal to eye, ending on a line with 

 margin of eye; mandible l.s") in head; head naked except a few scales 

 on upper edge of opercle and on nuchal region. 



Upper outline of body more curved than lower, the greatest depth at 

 oi-igin of dorsal, the greatest width being at opercles where it is 1.35 in 

 head. Head i-ather blunt, the lower jaw projecting, the mouth being 

 somewhat oblique. Depth of caudal peduncle 2.."iO in head. 



Head without barbules or i-ross-lines of cirri nii cheeks, median iiortion 

 of snout, however, somewhat rougliened by two prominent lines of mu- 

 cous pores. Mouth rather large, tongue free, sub-truncate at tip. Teeth in 

 several rows in each jaw, the outer row enlaryed. cun'ed. canine-like, but 

 without prominent recurved canine on sides of lower jaw. Hill openings 

 restricted to sides. 



Body fully covered with fine smooth scales which covei- nuchal region 

 and extend slightly on \ipper jnargin of opercles. otherwise head entirely 

 naked. 



Origin of dorsal midway betweeji tip of snout and base of fifth dorsal 

 ray, the spines fine, not elongate, their longest 2.85 in head. Longest 

 Soft dorsal ray 1.75 in head; caudal rounded 1.25 in head. Origin of 

 anal is midway between end of caudal vertebra and the angle of the 

 preopercle, its longest ray l.S.") in head; origin of ventrals nearer tip of 

 snout than to anal pore, their length 1.10 in head. Pectorals scarcely 

 equal to head. 



(_'olor dark brown banded by 12 narrow white, dark-margined vertical 

 bands which completely encircle the body and are of much less width 

 than the interspaces, four of these bands are on the head, the first over 

 the snout just in front of eyes and down to angle of mouth, the second 

 from outer part of nuchal region down through eyes, the third and 

 fourth from nuchal region down sides of head, the fifth from origin of 

 dorsal over base of pectorals, the remainder at regular intervals on body, 

 there being one around the middle of caudal peduncle and another at 

 base of caudal ; these last two indistinct. Vertical fins uniform dark 

 grayish, pectorals and ventrals yellowish white. 



Type is No. 5505 from Puerto Princesa, Palawan Island, P. I. 

 Length, 35 millimeters. 



