324 PROOEEiDINGS OF THE N"ATIONAL MUSiEUM vol.94 



spines; width of plate through origin of anal fin contained 3.2 to 3.4 

 in adults and 3.8 times in young in distance from anal fin base to 

 caudal fin base; keels on dorsal surface anteriorly all with small 

 serrations; underside of body white. (Maracaibo Basin.) 



Loricaria variegata venezualae, new sub.species 

 76. Only first plate at each side of front of base of dorsal fin with a keel, 

 second plate having an obsolete smooth keel only rarely; width of 

 body at origin of anal fin contained 3.8 to 4.1 in adults and nearly 

 5 times in young in distance from base of anal fin to base of caudal 

 fin; keels on dorsal surface anteriorly lower and smoother; under- 

 side of body posteriorly with brown splotches. 



Loricaria variegata variegata Steindachner 



56. I.ower lip with ])apillae and a fringe of short barbels along its posterior 



margin; none of barbels or tentacles reaching gill opening; inside of mouth 



with short pai)illae not mu.ch longer than papillae on lower lips; plates 



usually 18 to 21 + 10 to 13. 



(Loricaria gymnogaster Eigenmann and Eigenmann) 

 8a. Widely spaced keels on lateral plates anteriorly numbering 19 to 21 

 (usually 20) and those plates posteriorly on sides of caudal peduncle 

 with keels all close together numbering 10 to 13 (usually 11). (Mara- 

 caibo Basin) __. Loricaria gymnogaster lagoichthys, new subspecies 

 8b. Widely spaced keels on lateral plates anteriorly 18 or 19 (usually 18) and 

 keels uniformly close together posteriorly about 12 or 13 (usually 13). 

 Loricaria gymnogastsr gymnogaster Eigenmann and Vance 



LORICARIA MAGDALENAE Steindachner 



Loricaria magdalenae Steindachner, Denkschr. Akad. Wiss. Wien, vol. 39, p. 

 74, 1878; vol. 41, pi. 7, figs. 2, 2a, 3; 3a, 3b, 1879 (Rio Magdalena). 



Two of Eigenmann's specimens of L. jubata from Istimina, Colombia 

 (U.S.N.M. No. 79242), do not appear to agree in the number of plates 

 across the midventral region of the belly as indicated b}^ him in his 

 key (Mem. Carnegie Miis., vol. 9, p. 88, 1922) for this species. There 

 is not enough material available to enable me to work out the rela- 

 tionships between jubata, magdalenae, and the form in the Maracaibo 

 Basin, but from the material at hand tlie Maracaibo form appears to 

 be a little more robust, and perhaps when an adequate study is made 

 this will be considered as a distinct subspecies. 



The following collections were made b}'' Leonard P. Sch'.dtz in the 

 Maracaibo Basin of Venezuela in 1942: 



U.S.N.M. No. 121113, 8 specimens, 57 to 116 mm. in standard length, from a 

 cafio half a mile west of Sinamaica, March 11. 



U.S.N.M. No. 121114, 7 specimens, 54 to 203 mm., from the Rio San Ignacio 

 in a pool left by drying up of river during dry season, about 20 km. south of 

 Rosario, February 26. 



U.S.N.M. No. 121117, a specimen 42.5 mm., taken in the Rio Machango at the 

 bridge south of Lagunillas, March 16. 



U.S.N.M. No. 121116, a specimen 47 mm., from the Rio San Juan, 12 km. 

 south of Rosario, Estado de Zulia, February 26. 



U.S.N.M. No. 121115, a specimen 78 mm. from Lago Tule, about 80 km. west 

 of Maracaibo, 5 km. from Rio Socuy, March 1. 



