FISHES OF THE PHOENIX AND SAMOAN ISLANDS 25 



2a. A pair of nasal opeiiings over each eye willi considerable space between 

 them, inner pore lies a little forward of larger nasal opening over front 

 part of eye, this pore not to be confused with pair on top of snout a little 

 nearer tip of snout than front of eye ; gill openings below level of mouth 

 opening ; color brownish mottled with paler, lower jaw pale ventrally, teeth 

 as shown in fig. 3, a. Following proportional measurements indicate shape 

 of this eel: Snout to anus 2.02 to 2.06; head 7.2 and 8.5, depth 19.5 to 

 22.6 ; all in total length. Snout 5.S to 6.8; depth 2.G to 2.8; mouth (snout 

 to rictus) 2.4 to 3.0; length of longest midcaudal fin rays 14 to 20; all 

 in length of head. Eye 1.5 to 1.9 in snout. Head 3.5 and 4.2 in distance 



from tip of snout to anus TJropteryg'ius cantonensis, now species 



26. A pair of nasal openings over each eye separated by a septum and not by a 

 definite rart of skin of head as in cantonensis. 

 3a. Smaller inner nasal opening lies at anterior part of larger opening over 

 middle of eye; color usually plain brown with pores around head pale 

 or white bordered, two specimens about 130 mm. long, somewhat mot- 

 tled ; teeth as in figure 3, c. Following proportional measurements indi- 

 cate shape of this species : Snout to anus 2.1 to 2.5 ; head 6.7 to 7.3 ; 

 depth 18 to 23 ; all in total length. Head 3.1 to 3.2 in distance from 

 snout to anus. Mouth 3.0 to 3.4; depth 2.6 to 3.2; snout 5.6 to 6.3; 

 and length of midcaudal fin ray 13 to 16 ; all in length of head. Eye 1.6 



to 2 in snout Uropterygius allardicei (Jordan and Starks) 



3&. Smaller inner nasal opening lies at posterior inner part of larger opening, 

 both over middle of eye ; color consists of numerous reticulated or 

 broken irregular, more or less connected, narrow vertical pale brownish 

 bars on sides (brown bars wider than pale interspaces), indistinct in 

 some specimens ; sides of lower jaw barred plain and front of throat 

 pale ventrally; a broken brown band on head behind eyes, bordered 

 posteriorly with a pale band, both most distinct iu specimens up to 140 

 mm. ; teeth as in figure 3, 6. Proportional measurements : Head 9 to 9.4 ; 

 depth 25 to 28; snout to anus 2.2 to 2.4; all in total length. Head 4.0 

 to 4.2 in distance from tip of snout to anus. Mouth (tip of snout to 

 rictus) 2.3 to 2.6; depth 2.7 to 2.9; snont 5.2; and length of midcaudal 

 fin rays 11.7 to 13.4 ; all in length of head. Eye in snout 1.5 to 2. 



Uropterygius leucurus Snyder 

 16. A single pair of posterior nostrils, either with or without a raised rim or 

 elongate tube. 

 4«. Color of body consisting of brown or blackish spots, their diameter about 

 length of snout or little larger, arranged in about three irregular rows 

 along side of body ; in large adults there may be smaller brown specks 

 between large spots; brown spots not in parallel bands on head. 

 5(7. Tip of snout and lower jaw white (probably yellow in life) ; rest of body 

 with large black spots. Snout to anus 2.0 to 2.1; head 10.6 to 11.4; 

 depth 23 V> to 27; all in total length. Hoad 4.9 to 5.7 in snout to anus. 

 Snout 5.2 to 5.7; depth 2.0 to 2.4; mouth 2.9 to 3.9; length of midcaudal 

 fin r;iys 17 to 27 all in length of head; eye 1.9 to 2.0 in snout. Teeth as 

 in figure 3, d. (Perhaps this is the young of ti(/rinus.) 



Uropteryg'ius polyspilus (Regan) 

 56. Tip of snout not paler than rest of body ; small brown specks among the 

 large brown spots. Proportional measurements from a specimen 815 

 mm. in total length : Snout to anus 1.6 ; head 13.8 ; depth 26 ; all in 

 total length. Head 8.9 in distance from tip of snout to anus. Snout 

 6.5; depth 1.7; mouth 3.1; length of midcaudal fin rays 29; all in 

 length of head. Eye 1.7 in snout Uropterygius tigrinus (Lesson) 



