404 BULLETIN 189, UNITED STATES NATIONAL MUSEUM 



a simple tentacle, about as long as pupil, behind the very short tube 

 of anterior nostril; a long, simple tentacle, exceeding half length of 

 head, and reaching beyond origin of dorsal, on upper margin of eye; 

 gill rakers small, about nine on lower and three on upper limb of 

 first arch; dorsal fin beginning a little in advance of margin of pre- 

 opercle, scarcely notched, the spinous part anteriorly high, the spine 

 very flexible, the first one bearing membranous flaps on its anterior 

 margin, the fourth to seventh spines highest, about as long as head, 

 3.4 to 4.5 in length; soft part of dorsal not well differentiated from 

 spinous part, notably shorter than spinous part, the rays much shorter 

 than the longest spines; caudal attached by membrane to dorsal and 

 anal, round, only about as long as postorbital part of head; anal long 

 and low, without differentiated spines, its base 1.75 to 2.0 in length; 

 ventral long, rather broad, with the three rays, with broad membranes 

 between them, extending nearly or quite to their tips, the middle one 

 longest, about as long as head, 4.0 to 5.0 in length; pectoral moderately 

 broad, the longest rays in lower half of fin, 1.2 to 1.75 in head, 5.2 to 

 7.4 in length. 



Color olivaceous to brownish; side with about eight dark vertical 

 bars, becoming mere spots posteriorly, separated anteriorly by pale 

 lines; back with a series of indefinite dark spots, composed of dark 

 dots; head largely dusky brown, with dark dots above, a brownish 

 bar across preopercle and ventral surface of head, preceded by two 

 indistinct bars across chin; anterior part of dorsal uniform dark, pale 

 posteriorly with a few dark points on the rays; caudal and pectoral 

 pale, anal and ventral quite dusky. 



The description is based on nine specimens, 37 to 73 mm. (32 to 

 63 mm. to base of caudal) long, including six paratypes collected in 

 Sechura Bay by R. E. Coker, and three specimens taken in Indepen- 

 dencia Bay by the Mission. 



Range. — Known only from Sechura Bay and Independencia Bay, 

 Peru. 



EMBLEMARIA TORTUGAE. new species 



Trambollito 

 Figure 78 



Head 4.2, 4.3; depth 6.25, 6.5; D. XXII, 16, XXII, 17; A. II, about 

 24 (abnormal), II, 26; P. 13, 13. 



Body very elongate, slender, compressed, its greatest thickness 

 about two-thirds its depth; head long, low, moderately compressed, 

 its dorsal outline not ascending rapidly, rather gently convex; caudal 

 peduncle strongly compressed, 3.75, 3.75 in head; snout pointed, with 

 a shallow median groove extending to occiput, not bordered by rough 

 ridges, 5.4, 4.5 in head; eye 4.3, 3.8; interorbital narrow, 15, 18; 

 mouth horizontal, terminal; maxillary reaching well beyond eye, 2.0, 



