52 Annals of the Carnegie Museum. 



length; 14-16 scales in front of the dorsal; distance of origin of 

 dorsal equal to eleven scales in front of the dorsal ; end of anal and 

 origin of dorsal equidistant from base of middle caudal rays ; ventrals 

 in the female barely reaching anal ; pectorals beyond origin of ventrals. 



Female with wavy longitudinal dark stripes on the flanks between 

 the rows of scales merging into brown edged scales on the sides above 

 the anal, sometimes a row of spots between the stripes, one on the 

 margin of each scale ; lower surfaces colorless, back quite dark brown ; 

 scales above the pectoral, between the two lower stripes, silvery white. 



Male with a silvery band from the eye to the caudal where it is bent 

 upward, bordered above and below on the sides by black stripes also 

 bent up and confluent, but faint on the caudal ; belly colorless ; scales 

 of the back margined with dark, those along the lower side of the 

 caudal peduncle with fainter margins. 



Fjns unspotted in both sexes. 



Acanthophacelus bifurcus sp. no v. 



Type, a male, 22 mm. (No. 1088 Carnegie Museum Catalog of 

 Fishes.) Christianburg. 



Cotypes, 24 9, the largest 29 mm. Small pond at Christianburg. 

 (C. M. C. No. 1089, a-e; I. U. Cat. No. 11763.) 



Cotypes, 13 c?, the largest 24 mm. Small pond at Christianburg. 

 (C. M. C. No. 1090, a-e; I. U. Cat. No. 11764.) 



Cotypes, 29 $, the largest 25 mm. Small creek at Wismar. (C. 

 M. C. No. 1091, a-e; I. U. Cat. No. 11765.) 



Cotypes, 8 cT, the largest 24 mm. Small creek at Wismar. (C. M. 

 C. No. 1092, a-b; I. U. Cat. No. 11766.) 



Some of the females but 20 mm. long are with young. 



Head 3-33-3.75; depth at origin of anal 4.5 ; depth of caudal 

 peduncle 5.5 ; D. 7 ; A. 8 ; scales 26 or 27 to base of caudal ; eye 

 2.5 in the head, 1.33 in interorbital ; 14 scales in front of the dorsal. 



Slender, much more so than vivipara ; origin of dorsal about equi- 

 distant from base of middle caudal rays and occiput ; end of anal be- 

 low the vertical from the origin of dorsal ; ventrals in the female 

 reaching slightly beyond origin of anal ; pectorals to the ventrals. 



Females with a dark vertical spot on the upper part of the sides 

 about six scales behind the head, margined with lighter; dark borders 

 of the scales of the sides forming a regular reticulation ; a black me- 

 dian line behind the anal ; base and tip of dorsal blackest, all the other 

 fins hyaline. 



