THE OATFISHES OF VENEZUELA — SCHULTZ 



327 



lips papillate, but the papillae are larger and fewer than in other 

 species and usually with tiny papillae between the large ones; barbel 

 at corner of mouth not nearly reaching to gill opening; margin of lower 

 lip with barbels, but the upper lip has only papillae, about 20 to 30, 

 along its outer margin; tip of snout with a small naked area; usually 

 six or seven plates across middle of belly between the fourth plate in 

 front of pelvics ; preanal plate bordered by three plates; axil of pectoral 

 naked ; pectorals reach to base of pelvics, and the latter a little beyond 

 the origin of the anal; pelvics inserted under origin of dorsal; depressed 

 dorsal 1% to 2K times in snout to anus (dorsal longer in females than 

 males); ovaries of adult females contain numerous large eggs about 

 2 mm. in diameter. 



Table 24. — Meastirements in hundredths of the standard length, for two subspecies 



of Loricaria uracantha 



Characters 



Standard length (in mm.) 



Length head to tip supraoccipital 



Length head to end of operclo 



Length head to end of post-temporal plate 



Width of head at base of pectorals.-- 



Length of snout 



Diameter of eye (not including notch) 



Least width of bony interorbital 



Greatest depth of body 



Width of body at anal origin 



Postorbital length of head 



Least depth of caudal peduncle 



Least width of caudal peduncle 



Length of caudal peduncle 



Length of last ray of pectoral 



Length of last ray of pelvic.- 



Length of last ray of anal 



Length of last ray of dorsal 



Length of spine of dorsal.- - 



Length of spine of anal 



Length of spine of pelvic -. 



Length of spine of pectoral 



Tip of snout to origin of dorsal 



Tip of snout to origin of anal 



Tip of snout to insertion of pel vic- 



Tip of snout to insertion of pectoral 



Distance from anus to anal origin 



Length of upper ray of caudal fln.- 



rupestre 



Rfo San 

 Pedro 



Holotype 



79 



22.5 

 16.6 

 22.9 

 16.6 

 11.0 

 4.18 

 5.57 

 9.75 

 12.0 

 8.23 

 1.52 

 2.66 

 49.4 

 8.23 

 11.4 

 11.0 

 8.86 

 22.9 

 20.0 

 17.3 

 19.1 

 33.5 

 47.0 

 32.2 

 17.1 

 8.10 

 50.6 



Rio San 

 Juan 



Paratype 



75.4 

 22.1 

 16.6 

 22.7 

 16.6 

 10.9 

 3.71 

 5.70 

 11.5 

 13.3 

 8.09 

 1.59 

 2.78 

 48.4 

 8.36 

 10.2 

 12.6 

 8.62 

 21.9 

 20.6 

 18.8 

 20.6 

 34.0 

 47.4 

 32.6 

 17.2 

 8.49 

 46.4 



UTacatiiha 



Rio 

 Tachira 



87.9 

 22.1 

 16.5 

 21.6 

 17.3 

 10.2 

 3.47 

 5.12 

 9.67 

 12.3 

 8.08 

 1.36 

 2.50 

 48.2 

 9.67 

 11.6 

 11.0 

 9.33 

 22.8 

 20.5 

 18.2 

 19.3 

 34.6 

 48.4 

 33.9 

 16.2 

 8.99 



Rio 

 Chagres, 

 Panama 



91.7 

 20.9 

 17.3 

 21.3 

 15.5 

 11.0 

 3.49 

 5.45 

 8.18 

 11.0 

 7.09 

 1.53 

 3.16 

 50.8 

 8.40 

 8.62 

 9.16 

 8.29 

 18.7 

 15.8 

 15.0 

 16.9 

 30.9 

 44.2 

 30.8 

 17.7 

 8.18 



Color. — Brownish above, yellowish or pale below; five black bars 

 across dorsal surface, the first through front of dorsal fin base, the 

 second under tips of depressed dorsal fin, then tliree on caudal pedun- 

 cle; base of branched rays of caudal fin blackish; all fins barred; 



