(544 



ZOOLOGY— FISHES. 



to the caudal fin, m .0G5; to the anal, m .0465; to the ventral, m 032; length 

 of the head, n, .01G5; length to the orbit, m .0048; width between the orbits, 

 m .005 ; between the middle of the pterotics, m .008. 



Color olivaceous above, with a median black vertebral band; sides to 

 above lateral line silvery, leaden edged above; bases of ventral fins red. 



Dedicated by Professor Cope to Dr. Henry C. Yarrow, zoologist of the 

 surveys west of the 100th meridian. 



No. 



Locality. 



Date. 



Collector. 



5°5 

 5X 





July. 1S73 



.... do 



II. W. Henshaw. 



Do. 



do 







RHINICHTHYS, Agass. 

 RHINICHTHYS MAXILLOSUS, Cope. 



Plate XXVII, Figs. 1, la. 

 Rhiniclithys maxiUosus, Cope, Proc. Acad. Nat. Sci. Phila., ISCt. 27S. 



This is the common Rhiniclithys of New Mexico, and was collected in 

 considerable numbers. Scales,"; anal radii, I. 7; dorsals always I. 8, or 

 one less than in the typical Apocope henshavii of Utah Lake. The largest 

 specimen is from the Rio Chama at Abiquiu, and measures five inches in 

 length. Numerous specimens from the Upper Rio Grande and the Rio 

 Chama. Radii: D. I. 8; A. I. 7. Scales: (No. 1) I? 70; (No. 2) £ 72. 



No. 



247 E 

 120 

 52 E 

 L6 

 227 A 

 126 



"3 



239 



Locality. 



Tierra Amarilla, N. Mex. 



Twin Lakes, Colo 



Colorado Springs, Colo .. 



Abiquiu, N. Mex 



Nutria, N. Mex 



Costilla Creek, N. Mex .. 



Taos, N. Mex 



San Ildefonso, N. Mex. . . 



Date. 



Sept., 1872 



July- 1S73 



July, 1874 

 Aug., 1S74 



.... do 



.... do 



.... do 



.... do 



Collector. 



Dr. II. C. Yarrow. 

 Dr. J. T. Rothrock. 

 John Yarrow. 

 Dr. O. Loew. 

 W.G.Shedd. ' 

 Trof. E. D. Cope. 

 Dr. H. C. Yarrow. 

 Do. 



APOCOPE, Cope. 

 Apocope, Cope, U. S. Geol. Surv. Terrs., 1871, 472. 



A fish referred below to the Apocope vulnerata, Cope, i\ve inches in length, 

 presents a completed lateral line, and is thus different from the types of 



