FEOM THE EIO PAEAGUAT. 33 



produced in a short filament. Lateral shields 30, with two spinose ridges approximating 

 on the 21st or 22nd ; nuchal shields without keels ; 18 shields between dorsal and 

 caudal, 16 between anal and caudal. Breast and belly shielded; pectoral shields 

 numerous, polygonal, irregular; ventrals 4 to 6 transversely enlarged ones on each 

 side, and one or two series of smaller ones in the middle. All the shields finely 

 granulate and spinulose. Olive above ; dorsal and caudal with small dark spots along 

 the rays; pectorals and ventrals blackish. 



Total length 220 millim. 



Three specimens from Paraguay. 



Allied to L. nudirostris, Kner, and L. spixi, Stdr. 



46. LOEICAEIA ANUS, Val. 

 Paraguay. 



47. LOEICAEIA MACULATA, Bl. 



Paraguay. 



48. LOEICAEIA APELTOGASTEE. (Plate VII. fig. 2.) 

 Loricaria apeltogaster, Boulenger, P. Z. S. 1895, p. 528. 



A few slender teeth in both jaws. Head slightly longer than broad, 5 times in total 

 length ; snout acutely pointed, feebly projecting beyond the lip ; head-shields strongly 

 spinulose ; occipital shield with two closely approximated, parallel keels ; diameter of 

 orbit 7J to 8 times in length of head, 4 times in length of snout, IJ to l^in interorbital 

 width ; no postorbital notch ; lower labial fold rather larger with long fringes ; barbel 

 long. Dorsal I 7 ; first ray a little longer than the head, just above base of ventral. 

 Pectoral I 6 ; first ray more or less produced, at least as long as the head, reaching 

 much beyond base of ventral. Ventral I 5 ; first ray produced, but shorter than 

 pectoral, reaching much beyond origin of anal. Anal I 5. Upper caudal ray produced 

 in a very long filament. Lateral shields 31 or 2, with two spinose ridges uniting on 

 the 17th to 20th; nuchal shields bicarinate; 21 or 22 shields between dorsal and 

 caudal, 19 or 20 between anal and caudal. Breast and belly naked, or with small 

 stellate shields ; a series of 6 to 8 small transverse shields may be present on each side 

 of the belly. All the shields finely granulate and spinulose. Pale brown above, with 

 three or four darker cross-bars on the body and two on the head; fins partially blackish. 



Total length 210 millim. 



Four specimens from Paraguay. 



Allied to L. nudiventris, C. & V., L. evansi, Blgr., and especially to L. macrodon, 

 Kner. 



49. LoEic.\RiA LATA, Eigeum. 

 Paraguay. 



VOL. XIV. — PART II. No. 2. — October, 1896. F 



