346 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY - IV. 



565. G. nflmis (B. & G.) Grd. 



Body moderately stout. Dorsal and. anal fins similar in size and 

 shape, the latter not much advanced. Coloration plain; dorsal and 

 caudal dotted with black, llead 4; depth 3|. D. G; A. 8. Texas. 

 (Qirard.) 



(l/.-trrmuli-i'i afflnis B. & G. Proc. Acail. Nat. Sci. Phila. 1853, 390; Girard, U. S. 

 M.-\. Bound. Surv. Ichth. 72; Giiuther, vi, 33G.) 



566. O. uobilis B. & G.* 



Body very deep, elevated in front of dorsal. Anal much smaller 

 than dorsal. Ventrals very small. Coloration plain. Head 3; depth 



3J. D. 8; A. 7. L. 2 inches. Texas. (Girard.) 



(Hclfraudria nobilis B. & G. Proc. Acad. Nat. Sci. Phila. 1853, 390; Girard, U. S. 

 Mex. Bound. Surv. Ichth. 71; Giiuther, vi, 335.) 



(Two other species from the Rio Graudo region, G. speciosa and G. scnilis, are briefly 

 and probably unrecognizably described by Girard, Proc. Acad. Nat. Sci. Phila. 1^59, 

 121). 



162. MOLLIENESIA Le Sueur.t 



(Limia Poey.) 



(Le Sueur, Journ. Acad. Nat. Sci. Phila. ii, 1821, 3: type Molllenenla I all pinna Le 



Siieur.) , 



Body rather stout. Mouth small; mandible very short, its bones not 

 united, the, dentary being movable; both jaws with a narrow band of 

 small tertli, besides ail outer series of long, slender, movable teeth, 

 which are curved and slightly compressed, placed on the outer edge of 

 the jaw. Brauchiostegals usually 5. Scales rather large. Anal fin 



* G. <jra<-ilix (lleckel)Gthr. 



Anal proce-s t ,\ i.-c as long as head; the extremity bent. A dark band from upper 

 ml of gill-opening to the caudal. Head 4; depth 4. D. 8; A. 9; scales v!'J-7. Ori- 

 zaba, Mexieo. (dilHthcr.) 



(.\ijilioiiliunin yrucilia Hcckel, Sitzgsbcr. Akad. \Viss. \Vien, 1848, i, pt. 3, 300; Giiu- 



ther, vi, :;:;u.) 



tXIPIIOPHORUS Heckel. 



(Heckel, Sii/-^lier. AUad. Wiss. Widi, 1848, i, pt. 3, lf>3: typo A*J/>7iojJ/tor.s 

 EeokeL) 



Tliis genus (litl.-rs from Moll'n m*<ti eliielly in the structure of its eumlnl I'm, the lower 

 rays of \\lnrli in the males are prolonged into a long >u onl -shaped appendage, which 

 in the adult is sometimes as long as the rest of the lish. Anal of the male i ..... lilied 

 into an intromii lent or^an, one or I \\ o of I In enlargi-d ra\ s being provided u ith hook- 

 like IIP-. Itianchiostegal.s .">. (|/</ja?, sword ; (popsao, to bear.) 



X. hclliri lli-cki 1. 



Sides with blue and vellowinh-green bands or dark spots. Prolonged caudal ap- 

 pemlage ot the male nearly as long as the body, yellow, with black edges. Anal pro- 

 I with numerous hooks. Head 4 ; depth 3J-. B. 5; D. 13; A. 9; scales 29-8. 

 Mexico. (C Hit tin r. ) 



(Ih-ckd I. c.; Giinther, vi, 349.) 



