260 EXPEDITION OF THE "ALBATROSS," 1899-1900. 



In Fishes of Samoa, Jordan & Seale have represented the genus Myxus with 

 one species, M. leuciscus, and Chaenomugil with two species, C. chaptali Eydoux 

 & Souleyet and C. nauticus Bryan & Herre. 



In the synonymy of C. chaptali they place Myxus pacificus Steindachner, 

 and in a translation of Steindachner's description by Jordan & Evermaini in 

 Fishes of Hawaii, it is indicated that there are two rows of small movable 

 teeth on the upper lip. Steindachner states that the intermaxillary has a band 

 of small movable teeth in which those of the outer row are larger than those 

 of the other rows; the border of the mandible is sharp, with a horizontal row 

 of small movable teeth; he also distinctly states that the upper li]i is rather 

 small and the eye has a well developed adipose eyelid. 



This last character removes it from Chaenomugil or Myxus. In the descrij)- 

 tion of Chaenomugil nauticus Bryan & Herre, the teeth are not described with 

 sufficient definiteness to indicate clearly whether it is a Chaenomugil or Neo- 

 myxus but the upper lips "not thick" would indicate that it belongs to the latter 

 genus. Furthermore there is nothing in the description to indicate that it is 

 not a Neomyxus. In the larger number of scales, large eye?, narrow inter- 

 orbital, and long first ray of dorsal and of anal it seems to differ from any de- 

 scribed species. 



Neomyxus chaptali (I^ydoux & Souleyet). 



Mugil chaplati Eydoux & Souleyet, Voyage Bonitc. ZooL, 1842, 1, )). 171, pi. 4, fis- 1. 



Myxus (Nenmi/.rus) sclalen Steindachner, Sitz Ak. Wiss. Wien, 1878, 77, ]). 384. 



Chaenomugil chaptalii Jordan & Evermann, Bull. U. S. Fish. Comm., 190.5, 23, pt. 1, p. 40, fig. 4i). 



One specimen. No. 08834, 3^ inches long from Funafuti, Ellice Islands, 

 three specimens. No. 08981, each 2 inches long from Guam; three specimens; 

 No. 08914, M. C. Z. 29514, l| to 2 inches long from Arhno Atoll, Marshall 

 Islands; twenty-two specimens. No. OoSKi, \l to 2s inches long from Makemo, 

 Paumotu Islands. 



No. 08834 has head 3.73 in length; depth 4.17; eye 3.8 in head; inferoihital 

 2.37; dorsal midway between snout and liase of caudal; origin of anal one half 

 in advance of dorsal; maxillary hidden; cilia in two rows in each jaw; dorsal 

 IV-1, 9; A. 11, I, 10; scales 13 or 14-44 or 45. 



