XENOCARA.—LORICARIA. 113 
4, XENOCARA, Regan. 
Xenocara, Regan, Trans. Zool. Soc. xvii. 1904, p. 251. 
Similar to Ancistrus, but the snout with a naked margin, which is usually broader in males than in females 
and bears fleshy tentacle-like processes, which are more developed in the males. 
Twelve species from Tropical America. 
1. Xenocara chagresi, Figenm. 
Xenocara chayresi, Regan, Trans. Zool. Soc. xvii. 1904, p. 256, t. 14. fig. 7. 
Dorsal I 7, Anal I 3-4, 24 scutes in a longitudinal series, none of them keeled. Interoperculum armed 
with about 10 spines. Olivaceous; a dark spot at the base of the first interradial membrane of the 
dorsal. 
Hab. Panama, Rio Chagres. 
Total length 175 mm. 
5. LORICARIA, Linn. 
Loricaria, Regan, Trans. Zool. Soc. xvii. 1904, p. 270. 
Body elongate, protected by bony scutes; caudal peduncle depressed, with paired dorsal and ventral series of 
scutes and posteriorly with a single lateral series of scutes on each side. Snout pointed or rounded. 
Teeth bifid, in a single series. An orbital notch. No adipose fin. 
Forty-two species from Panama and South America, 
1. Loricaria uracantha, Kner & Steind. 
Loricaria uracantha, Kner & Steind. Abhandl. Bayer. Ak. x. 1865, p. 56, t. 6. fig. 3; Regan, 
Trans. Zool. Soc. xvii. 1904, p. 278. 
Loricaria lima, Kner & Steind. t. c. p. 58. 
? Loricaria bransfordi, Gill, Proc. Ac. Philad. 1876, p. 338. 
Lips papillose, with short marginal fringes. Snout pointed. Males with bristles on the sides of the head, 
the occipital region and nuchal scutes, and the pectoral fins. 28 scutes in a longitudinal series. Abdomen 
covered with 3 or 4 series of plates between the lateral series. Upper caudal ray strong, stout, spinous. 
Hab. PANAMA. 
Total length 180 mm. 
2. Loricaria variegata, Steind. 
Loricaria variegata, Steind. Denkschr. Ak. Wien, xli. 1879, p. 165, t. 3; Regan, Trans. Zool. Soc. 
xvii. 1904, p. 293. 
Lips with filiform papille and long marginal fringes. Snout obtuse. 380 to 32 scutes in a longitudinal series. 
Abdomen naked except for the lateral series of plates and a median strip of smaller plates. Uppermost 
caudal ray elongate. Head, body, and dorsal, caudal, and pectoral fins with numerous dark oblong spots. 
IIab. Panama, Rio Mamoni. 
BIOL. CENTR.-AMER., Pisces, Judy 1907. Q 
