22 BULLETIN 18 0, UNITED STATES NATIONAL MUSEUM 



115963, Tau Island, reef at Siulagi Point, June 27, 1939, 1 specimen, 108 mm. 



115964, Swains Island, reef. May 3-9, 1939, 9 specimens, 84 to 252 mm. 



115959, Rose Island, lagoon, June 12-20, 1939, 7 specimens, 52-70 mm. 

 115966, Enderbury Island, reef, May 15-19, 1939, 2 specimens. 158-179 mm. 



115960, Rose Island, reef, June 11-14, 1939, 2 specimens, 135 and 565 mm. 

 52317, Apia, Samoa, Jordan and Kellogg, 3 specimens. 



56985, Apia, Samoa, Jordan and Kellogg, 3 specimens. 



ECHIDNA DELICATULA (Kaup) 



Poecilophis delicatulus Kaltp, Catalogue of the apodal fish in the collection of the 

 British Museum, p. 102, 1856. 



51714 (3 types of Echidna trossula Jordan and Scale), Apia, Samoa, Jordan 

 and Kellogg. 



52455, Apia, Samoa, Jordan and Kellogg, 6 specimens. 



ECHIDNA LEUCOTAENIA, new species 



Plate 3 



Holytype. — A specimen 229-mm. in total length (U.S.N.M. No. 



115949) taken by Leonard P. Schultz on the reef of Enderbury 

 Island, May 15-19, 1939, along with 21 paratypes (U.S.N.M. No. 



115950) from 54 to 223 mm., with same data. 



Additional paratypes were collected by L. P. Schultz as follows: 

 3 (U.S.N.M. No. 115955), 90 to 172 mm., were taken July 7-17, 1939, 

 in a channel of Hull Island; a 200-mm. specimen (U.S.N.M. No. 



115951) was taken July 8-12, 1939, in a channel of Hull Island; 2 

 (U.S.N.M. No. 115954), 81 and 110 mm., were taken on the reef of 

 Rose Island, June 11-14, 1939; 2 (U.S.N.M. No. 115956) were taken 

 on the reef of Swains Island, May 3-9, 1939, and measure 77 and 

 94 mm. in total length; 2 (U.S.N.M. No. 115952), 73 and 96 mm., 

 were taken on the outer reef of Canton Island, April 25-28, 1939; 

 3 (U.S.N.M. No. 115953), 44 to 49 mm., were taken in the lagoon 

 of Rose Atoll, June 12-20, 1939; 2 (U.S.N.M. No. 115957), 39 and 42 

 mm., referred to this species with a little uncertainty because of their 

 small size, were taken in rock pools in Fagasa Bay, Tutuila Island, 

 June 5, 1939. 



Description. — (Based on the holotype and 36 paratypes listed 

 above. Detailed measurements of the holotype and two paratypes, 

 respectively, are given in millimeters; these were converted into pro- 

 portional measurements in table 2.) Total length 229, 202, 111; 

 length of head 28.5, 25.5, 12.8; greatest depth 12.0, 10.0, 5.0; 

 length of snout 5, 4.4, 2.2; length of mouth 9.5, 9.5, 4.5; width of 

 fleshy interorbital space 3, 2.7, 1.6; diameter of eye 3, 2.5, 1.5; dis- 

 tance from snout to anus 105, 89, 50; length of tail 124, 113, 61; dis- 

 tance from tip of snout to origin of dorsal 25.3, 21.5, 11.0. 



In one paratype there are 126 vertebrae, 80 of these from the anus 

 to tip of the tail. Teeth in upper jaw low, conical, with more or less 



