422 MEMOIRS OF THE CARNEGIE MUSEUM 



Sixteen specimens, 77-165 mm. Nickaparu Creek. (C. M. Cat. No. 

 2154a-d; I. U. Cat. No. 12324.) 



Fourteen specimens, 70-148 mm. Below Packeoo Falls. (C. M. Cat. No. 

 2155er-c; I. U. Cat. No. 12325.) 



One specimen, 125 mm. Rockstone. (C. M. Cat. No. 2156.) 



Four specimens, 74-120 mm. Kumaka. (C. M. Cat, No. 2159a-6; I. U. 

 Cat. No. 12328.) 



Head 3.66-3.75; depth 4-4.5; D. 10-12; A. 9-12; scales 3-33 or 34-3; eye 

 1.5 in snout, 6 in head, 2.66 in interorbital. 



J. ma-shaped, subterete; caudal peduncle compressed; head blunt, depressed; 

 mouth oblique, the lips meeting in an irregular line, the mouth scarcely perceptible 

 when closed. No dorsal or ventral keels. Scales cycloid, with a few longi- 

 tudinal striae and many minute corrugations; fins naked. 



Dorsal considerably behind the middle, more or less angulated at the tip 

 of the antepenultimate ray, sometimes prolonged; caudal short-rounded; anal 

 short angulated; origin of ventrals a little in front or a little behind the vertical 

 from the origin of the dorsal; ventrals trowel-shaped, of variable length; pector- 

 als rounded, reaching about half-way to the ventrals. 



Dark brown above, top of head with small round dark spots; frequently a 

 dark spot at the base of the upper caudal rays, and another one on the sides below 

 the dorsal; a dark humeral spot in the young; sides marbled and clouded with 

 vertical markings on the tail; sides of head in light-colored individuals with alter- 

 nate light and dark bars radiating from the eye, in dark-colored individuals with 

 a lunate bright spot covering opercle; posterior part or sometimes the entire cau- 

 dal, especially its middle, and sometimes the posterior part of the anal with light 

 and dark bands; pectorals and ventrals uniform light or dark. 



In life the ventrals, anal, and lower part of caudal are reddish, the margin 

 as well as sides olive; lower parts yellow. 



Order GLANENCHELI. 



Family X. GYMNOTID^. 66 



Eels and Electric Eels. 

 Gyrnnotidcc Bonaparte, Cat. Metod. dei Pesci Europei, 1846, — . 

 Sternopygidoe Cope, Proc. Am. Ass. Adv. Sci., XX, 1871, 333. 

 Electrophoridce Gill, Arrangement of the Families of Fishes, 1872, 18. 



66 This account of the Gymnotidse was prepared by Dr. Max Mapes Ellis, then a Fellow in Zoology in 

 Indiana University. 



