8 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 9 



Belonidae Needlefishes 



Tylosurus fodiator Jordan and Gilbert 



One from Bahia Honda, Panama, December 22, 1931. Length 344 

 mm. Two from Tangola-Tangola Bay, Mexico, December 16, 1931, 

 Length 356-405 mm. Two from Corinto, Nicaragua, February 8, 1932. 

 Length 505-545 mm. This species was found to be very common in the 

 above localities. 



Ablennes pacificus Walford 



One from Charles Island, Galapagos, January 3, 1932. Length 670 

 mm. 



Hemiramphidae Halfbeaks 



Euleptorhamphus longirostris (Cuvier) 



Two from South Seymour Island, Galapagos, Januaiy 17, 1932. 

 Length 468-475 mm. Length of head including lower jaw 2.6 into 

 standard length. Origin of ventral fins midway between axil of pectorals 

 and end of caudal vertebra, 



Hyporhamphus unifasciatus (Ranzani) 



Three from Gorgona Island, Colombia, February 12, 1934, Length 

 100-113 mm. Two from Port Utria, Colombia, February 15, 1934, 

 Length 90-102 mm. Dorsal 16, anal 15 rays. Origin of anal on a 

 line with the origin of the dorsal. Origin of ventrals midway between 

 base of caudal and middle of eye. Length of lower jaw beyond upper ^ 

 greater than head. Interorbital space less than eye. 



Hyporhamphus roberti (Cuvier and Valenciennes) 



One from Sihuatanejo, Mexico, December 12, 1931. Length 342 mm. 

 Eighteen from Mazatlan, Mexico, December 8, 1931. Length 53-250 

 mm. Five from Post Office Bay, Charles Island, Galapagos, January 3, 

 1932. Length to 250 mm. Two from James Bay, James Island, Galapa- 

 gos, January 10, 1931. Length 77-102 mm. Four from South Seymour 

 Island, Galapagos, January 14, 1932. Length 100-115 mm. One from 

 Corinto, Nicaragua, February 9, 1932. Length 190 mm. One from 

 Tagus Cove, Albemarle Island, Galapagos, January 12, 1934. Length 62 

 mm. Dorsal 16, anal 16 rays. Origin of the ventrals midway be- 

 tween base of caudal and the posterior margin of eye. A blue silvery stripe 

 from eye to caudal. Head with lower jaw 2.8 in length. 



