118 ALLAN HAXCOCK PACIFIC EXPEDITIONS VOL.2 



Measurements. — Two males 41-43 mm. Caudal 46.5-50, ventral 

 29.5, pectoral 35-39.5, depth about 12.5 (cannot be measured accurately 

 in these specimens), least depth of caudal peduncle 8.5-9, head 28-28.5, 

 postorbital part of head 15.5, head depth directly behind eye 14-14.5, 

 head width at same point 15-15.5, maxillary 21-22, snout 8, eye 7.5-8, 

 antedorsal distance 35.5-37.5. 



Holotype. — In Hancock Coll. La Paz Bay, Gulf of California; 

 dredged in 7 fathoms, sandy mud; February 21, 1936; male 43 mm. 



Paratypes. — Two obtained with the type, male 41 mm, specimen 

 of 35 mm in bad condition. Also, Escondido Bay, Gulf of California, 

 dredged in 20 fathoms; March 12, 1937; male 28 mm. 



Distinctive characters. — This species is easily distinguished from all 

 known gobies of the Pacific coast of North and South America by a 

 combination of striking characters, especially, its long maxillarj^, the 

 large scales and the medium count of dorsal and anal rays. Its relation- 

 ship is discussed under the genus. 



Gobulus hancocki, new species 



Description. — Form very slender; body moderately compressed; 

 head notably depressed. Mouth rather small, terminal, moderately 

 oblique, a horizontal through distal margin of upper lip passing ap- 

 proximately through lower margin of eye; lower jaw slightly projecting. 

 Maxillary rather short, its end falling under posterior margin of pupil. 

 Eye rather small, interorbital wide. No ridge or crest in front of dorsal. 

 Shoulder girdle without flaps or papillae. Isthmus restricted, attach- 

 ment of branchiostegal membrane near lower angle of pectoral base. 

 No scales anywhere. First dorsal with 7 flexible spines, none prolonged. 

 Second dorsal and anal with 12 and 11 rays, respectively; tip of pos- 

 terior dorsal rays ending at some distance from end of hypural. Pectoral 

 short, with 16 rays, its end nearly attaining a vertical through base of 

 sixth spine. Ventral short, failing to reach anus by a wide margin. 

 Caudal rather short, somewhat pointed. 



Dorsal and ventral aspects rather light colored, lateral aspect for 

 greater part of its extent notably darker; fins uniformly light, except 

 caudal having a somev/hat curved, broad, dark band not far from its 

 base; no other spots or color marks anywhere. 



Measurements. — Male 29 mm. Caudal 23.5, ventral 18, pectoral 

 18.5, depth 12.5, least depth of caudal peduncle 9, head 24.5, postorbital 



