NO. 7 ginsburg: xew species of gobioid fishes 119 



part of head 16, head depth 9.5, head width 11, maxillary 10, snout 6.5, 

 eye 4.5, antedorsal distance 34.5. 



Holotype. — In U. S. Nat. Mus. Secas Island, Panama; shore, coral 

 tide flat; W. L. Schmitt; Feb. 6, 1935; the only specimen examined. 



Distinctive characters and relationship. — This species is evidently 

 near Gobulus crescentalis (Gilbert), the only known species of its 

 genus, differing in its markedly more slender body, and in having the 

 mid-ventral area light colored like the back — darker than the back in 

 crescentalis. 



This species is named after Captain Hancock in recognition of his 

 interest in the scientific exploration of Pacific waters. 



Lepidogobius seta, new species 



Diagnosis. — Scales cycloid, small, about 65 ; none on antedorsal dis- 

 tance, side of head, base of pectoral or throat. Maxillary very long, 

 nearly reaching margin of preopercle. No definite papillae on shoulder 

 girdle. D.6 to 7-11 to 12; A. 9 to 10; none of the dorsal spines notably 

 elongated. Pectoral rays 21. Tongue slightly emarginate. Teeth in a 

 notably broad band. Skull with a rather narrow ridge over orbit; no 

 other ridges in posterior orbital region of skull. 



Holotype. — In U. S. Nat. Mus. Puerto Refugio, Angel de la 

 Guarda Island, Gulf of California; Albatross; March 29, 1889; 58 

 mm in standard length, the caudal broken. 



Paratype. — In U. S. Bur. Fish., obtained with the type, 64 mm. 



Relationship. — This species is nearest to Lepidogobius (GilUchthys) 

 detrusus (Gilbert and Scofield), differing chiefly in having fewer anal 

 rays, a less extensive squamation, a narrower supraorbital ridge, and in 

 lacking a median occipital ridge on the skull. 



Lepidogobius luculentus, new species 



Diagnosis. — Scales small, cycloid, embedded, veiy moderately over- 

 lapping in large specimens ; none on antedorsal distance, side of head, 

 base of pectoral or throat. Maxillaiy rather short, ending approximately 

 under posterior margin of pupil in large specimens. Shoulder girdle 

 with flaps of moderate size, usually 2, sometimes 1 or 3. First dorsal 

 nearly always with 5 spines, varying 3-6; the first spine more or less 

 prolonged in some individuals, not prolonged in others (probably males 

 and females, respectively). Second dorsal nearly always with 18 or 19 

 rays, infrequently 17; anal rays nearly alwaj'S 16 or 17, infrequently 



