4fi4- 



Cope.] -xu-x [June", 



lion ; also, the iris above and below the orbit. The dorsal fin has a large 

 black spot on the posterior half ; the fin is anteriorly vermillion. The 

 tail has a rather broad black posterior margin, and a wide vermillion 

 crescent following it into the points of the fin ; base of the fin pale. Anal 

 and ventral fins willi milky pigment. 



Small horny tnbercles appear on the upper surface of the head in spring, 

 as in the species of Hypsilepis. 



In this case I have assigned this species to its genus in accordance with 

 its technical characters, but it is probable that it will be necessary to 

 change the arrangement at some future time, — when the structure of these 

 fishes is better known. 



The P. pyrrhonielas is the most abtmdant fish in the tributaries of the 

 upper Catawba River, North Carolina. 



ALBURNELLUS, Girard. 



Several species of this genus were obtained, and may be compared with 

 others already known, as follows : 



I. Ventral fins extending beyond dorsal, reaching anal. 



Scales 5 — 36 — 2 ; dorsal much elevated. A. 8. A. altipinnis. 



II. Ventrals extending to opposite last dorsal ray ; not to anal. 



«. Scales above lateral line 5 — 6. 

 /?. Scales large, lateral line 33. 



Orbit large. A. megalofs. 



' /5/3. Scales smaller, 1. 1. 38—40. 

 Scales I ; head smaller, body stouter. A. 8, eye smaller. A. amabilis. 

 Scales I ; head larger, body slender. A. 10, eye larger. 



A. JACULTJS. 



Scales, etc., as last ; eye much larger. A. arge. 



aa. Scales above 1. 1. 7. 



_7_ 



Scalesiii slender. A. 11. ' A. matutikus. 



3 



aaa. Scales above 1. 1. 9. 

 Rather stout. A. umbratilis. 



III. Ventrals only extending to line of middle of dorsal. 



6 



Head 4,5 in length ; scales 5^,: A. micropteryx. 



53. ALBURKELLtlS ALT1P1HNI8, CopC. 



Spec. nov. 



This species is much less elongate than such typical forms of the genus 

 as A. jaculus, etc. The head is short, but not wide. Orbit very large, 

 diameter exceeding muzzle, entering length of head 2.75 times, one-third 

 greater than the interorbital width. Head 4.33 times in length to basis of 

 caudal, depth five times in same. Anterior dorsal radii unusually pro- 

 longed for the genus, equal just half distance from the base to end of muz- 

 zle. D. I. 8. A. I. 9, The pectorals do not quite reach the base of the 



