32S KXPKDITIOX OF THK ■' AI,15ATR()SS," 1S99 1900. 



pine An'hijK'lafio (Bull. U. S. Hur. Fish., 27. p. 2S4l, in having nnv more anal 

 ray. 



The following male specimens are in the collection (formciiy called riru- 

 lalus), Nos. 05900, Sf inches and ().")()()4, thn^e sjiecimens 2g to ag inches from 

 Makemo, Paumotu Islands. 



The last three specimens each have dorsal XIII, 20; anal 24. Nos. 0")911, 

 'SI. (". Z. 29510, four specimens 2 to 2* inches long from Makemo, and 05901, 

 ^I. ('. Z. 29382, 41 inches long from Rangiroa, Paumotu Islands. 



The largest sj^ecimen among No. 05904 gives the following: head 4.41 in 

 body; depth 4.07; eye 4.3(5 in head; longest dorsal spine 1.41; longest ray 1.25; 

 longest anal ray 1.60; dorsal XII, 20; anal 22. Soft dorsal attached to caudal 

 for about ? of its length: caudal slightly rounded: front of head almost per- 

 pendicular; slightly rounded; crest present; supraorbital tentacle bifid; a 

 single row of cardiform teeth in each jaw; no canines present, anterior nostril 

 with short tube having a fringe of cirri on its posterior border. 



In spirits this sjiecimen is much lighter than the other specimens though 

 similarly but moi'c faintly marked on body; soft dorsal dusky in front, lighter 

 behind, showing very slight traces of the lighter bars. The fin is also very light 

 colored with a broad dusky margin showing slight traces of obliciue bars; anal 

 light colored, also showing slight traces of bars and with narrow dusky margin 

 on membrane: caudal has a bi-oad faintly dusky margin and faint dusky bar 

 about middle. 



The differences formerly se])arating N. cdinluliis and S. riruhihts were the 

 presence of an occi])ital crest in S. riruhtlus, and differences in coloration. These 

 are, however, merely sexual characters. In the fishes of Samoa .Jordan & Scale 

 record seventy-five specimens of ,S. riruhilus and sixty of S. edcnhdus from Apia 

 and Pago Pago. An examination of thirty-seven of these shows that of twenty- 

 four specimens identified as .S'. riruldtus all but one of the mature specimens 

 are males, and this one lacked the crest and had the coloration of the S. edcnhdus 

 form. Of the thirteen specimens identilied as S. edetitulus all were females 

 except one, and tiiis one had a crest and the coloration of the S. ririil(itu.'< form. 

 Ail of our specimens show the .same dilf'erences and lease no doubt luit that the 

 two s])ecies are identical. 



