FISHES OF THE PHOENIX AXD SAMOAN ISLANDS 13 



lengths from tip of tail, where this fiu becomes pale; anal fin pale; 

 two or three jjairs of couical teeth on vomer. Following propor- 

 tional measurements were made: Head 17; depth 46; tip of snont 

 to anus 1.2, all in the total length. Eye 2.25 in snont. Depth 2.7; 

 tip of snout to origin of dor.sal 2.8 ; snout to rictus 3.57 ; snout 7.8 : 

 and end of dorsal to tip of tail 15.5, all in total length. 



Callechelys melanotaenia Bleeker 



■ih. Color more or less marbled, black and white areas of about same size 



behind head, more or less join each other; the head is covered 



with small black spots ; sometimes dorsal fin is blackish along 



margin and sometimes marbled like body; tail is more uniform 



blackish posteriorly with margin at tip white; about nine pairs of 



teeth on vomer. Following proportional measurements were made : 



Head 16 to 18.6; depth 36 to 52; snout to anus 1.58 to 1.G6; all in 



total length. Eye 1.7 to 2.3 in snout. Depth 2.3 to 2.8; snout to 



origin of dorsal 2.8 to 3.3; snout to rictus 3.8 to 4.2; snout 7.4 to 



8.4 ; rear end of dorsal fin to tip of tail 8.1 to 11 ; all in length 



of head. Tail 1.6 to 1.7 in trunk_ Callechelys marmoratus (Bleeker) 



1&. Origin of dorsal fin over or behind gill openings; pectoral fin developed. 



5a. Origin of dorsal fin over gill openings or over pectoral fin ; teeth on 



maxillary and dentary conical, and arranged in a single row but those 



on vomer not canines or larger than those on intermaxillary plate. 



6a. Vomer without teeth ; color pattern consists of about 25 to 32 bhick 



bars meeting their fellows dor.sally but not ventrally, except last 



two or three on tail ; these black bars or oval saddles are twice as 



wide as the pale interspaces along the middorsal line and h?lf 



as wide ventrally. Proportional measurements as follows : Head 



14 or 15 ; depth about 63 ; snout to anus 1.9 to 2.1 ; all in total length. 



Eye 2.0 to 3.2 in snout. Depth 4.2 to 4.5; tip of snout to dorsal 



origin 0.89 to 0.98; snout to rictus 3.6 to 3.8; snout 4.9 to 6.3; rear 



of dorsal to tip of tail 4.5 to 4.9; length of pectoral fin 5.0 to 9.1; all 



in length of head. Tnuik 0.93 to 1.13 in tail. 



Leiuranus semicinctus (Lay and Bennett) 

 66. Vomer with two small teeth ; color pattern consisting of 28 wide black 

 saddles in dorsal half of body, ventral half anteriorly plain white 

 or pale, posteriorly these black saddles extend two-thirds to three- 

 fourths down side of body ventrally, la.st one on tail almost meeting its 

 fellow ventrally ; each black saddle is about 4 times wider than narrow 

 pale interspace dorsally. Proportional measurements as follows: 

 Head 16 ; depth 48 ; snout to anus 2.46 ; all in total length. Eye 1.28 

 in snout. Depth 3 ; snout to dorsal origin .85 ; snout to rictus 3.4 ; 

 snout 6.5; length of pectoral 4.7; end of dorsal fin to tail 4.4; all in 

 the length of the head. Trunk 1.15 in the tail. 



Macliaerenchelys phoenixensis, new species 

 56. Origin of dorsal fin one-third length of head behind gill openings; t(>eth 

 on vomer strong canines in a single I'ow, see figure 2, 7). Snout 15.5 

 to 16.3 in head ; distance from tip of snout to cross row of pores be- 

 hind eye 6.7 to 7.2 times in head. Ej^e in snout 1.09 fo 1.3. For addi- 

 tional proportional measurements see table 1. 



Brachysomophis sauropsis, new species 



Genus MYKICHTHYS Girard 



Myrichthys Gibard, Proc. Acad. Nat. Sci. Philadelphia, 1859, p. .58. (Type, 

 Myriehlhys tUjrimis Girard.) 



