208 BULLETIN OF THE BUREAU OF FISHERIES. 



EuXEFTORHAMPHUS Gill. 



254. Euleptorhamphus long-irostris (Cuvier & Valenciennes). Hawaii; open Pacific; warm 



seas generally. 



ZENARCHOPTERUS Gill. 



255. Zenarchopterus dispar (Cuvier & Valenciennes), New Guinea (Macleay); East Indies. 



256. Zenarchopterus maculosus Garman. Fiji. 



257. Zenarchopterus vaisiganis Jordan & Seale, new species. Taoto. 



Head, without lower jaw, 4.30 in length, with lower jaw, 2.30; lower jaw from tip of upper 3.90; 

 eye 3.60 in head; upper jaw slightly broader than long, about equal to eye; interorbital slightly greater 

 than eye; dorsal 12; anal 12; modified with a clasping organ, with a fleshy intromittent organ just 

 anterior to base; scales 2-43-3; snout 3.10. 



Body elongate, the depth 1.75 in head, the width 2.75; scales deciduous, the lateral line running 

 very low on body; depth of caudal peduncle equal to interorbital space; width of preorbital in front of 

 eye equal to pupil; opercle and preopercle entire; suborbital with more or less adipose membrane; 

 villiform teeth in jaws, none on vomer, maxillary ortongue; gill-rakers thick, rather blunt, the longest 

 about 2 in pupil, 12 developed on lower limb; base of dorsal fin 1.30 in head, fully one-half being on 

 caudal peduncle, fourth and fifth rays are elongate, being about equal to base of fin; longest ray of anal, 

 which is widened and elongate, forming one of the wings of the claspers, is about equal to length of 



FiGi-ll. — Zenarchopterus vaisiganis Jordan & Seale, new species. Type. 



head; fleshly base of anal equal to eye; ventral small, 2.95 in head, its origin far back at beginning 

 of posterior third of body; pectoral 1.20 in head; intromittent organ very prominent, situated 

 between tip of ventrals and base of anal, its width 2 in length; caudal rounded, 1.20 in head. 



Color in spirits, silvery below, darker above, with wash of greenish blue, a distinct dark-blue line 

 from opercles to base of caudal; lower jaw deep blue; orbit with rim of blue; anterior of anal with 

 dusky wash; a black spot on anterior dorsal, the fin more or less washed with dusky; caudal with 

 dusky wash; other fins with very slight trace of dusky. 



Color in life, pale olivaceous; a silvery streak along side; fins dirty-yellowish olive. 



Fourteen specimens from Vaisigano Eiver, at 'Apia. The type is no. 51718, U. S. National Museum, 

 length 6 inches. 



EVOLANTIA Snodgrass & Heller. 



258. Evolantia microptera (Cuvier & Valenciennes). Hawaii; New Ireland; East Indies; Gala- 



pagos Is. 



PAREXOCCETUS Bleeker. 



259. Parexoccetus brachypterus (Solander). Tahiti; Hawaii; Laysan; West Indies. 



260. Parexoccetus brevipinnis (Cuvier & Valenciennes). New Ireland. 



261. Parexoccetus rostratus (Giinther). Hawaii. 



EXOCCETTJS Lhmasus. 



262. Exoccetus volitans Linnteus. Hawaii; East Indies; Atlantic Ocean. 



