some Loriciin'ii/ Fis/it's. J»7 



Several receuily acijuired sjjcciincns of A', bravipinnia, 

 Hcj;an, from Tlicrcsopolis arc a little smaller than the typieal 

 example, from which they diH'er slij^htly. They seem to show 

 that the type represents the extreme of variation in respeet 

 of two or three eli;iraeters, so that it ap[)ears useful to give a 

 description based on these examples. 



Xenocara breviplnnis. 



Depth of body nearly 6 in the length, length of head 2i^-3. 

 Head as long as or a little longer than broad aiul 2-1^ as 

 long as deep. Diameter of eye G-7 in tlie leugth of head, 

 interorbital width 2.]-2-^, length of snout 2. Length of 

 mandibular ramus lf|-3j in the interorbital width. Snout 

 ■with tentaeles. Interopcrculum with 12 to 17 spines, the 

 longest "^ the length of head. 2."3-2G scutes in a longitudinal 

 series, G or 7 between dorsal and adipose fin, 11 or 12 

 between anal and caudal. Dorsal I 7, the first ray §-^ the 

 length of head, the last g as long, when laid back not reaching 

 the spine of the adipose fin, which is preceded by a keel 

 formed by a single scute. Length of base of dorsal equal to 

 its distance from the anterior part of the spine of the adipose 

 fin. Anal I 4. Pectoral spine extending to base of ventral 

 or a little beyond. Caudal obliquely truncate, the lowest 

 ray |-i the length of head. Caudal peduncle 2^-2J as long 

 as deep. Olivaceous, fins dark spotted. 



Loricaria Steiiibachi, sp. n. 



Length of head 3i-3J in the length of the fish. Head as 

 broad as long ( (J ) or a little longer than broad (?) and 

 twice as long as deep. Diamotcr of eye 8 or 9 in the length 

 of head, interorbital width 3, length of s:iout nearly 2. 

 Sides of the head in the male armed with well-developed 

 bristles. Snout obtuse; supraorbital edges not or scarcely 

 raised ; orbital notch broad ; occipital plate flat, without 

 keels ; lips papillose, with short marginal fringes ; lower lip 

 moderately broad, rounde;! ; barbels very short ; teeth well 

 developed, G-9 on each side in both jaws. 30 scutes in a 

 longitudinal series, 19-21+9-11, not carinate except for 

 the lateral keels, which are obsolete anteriorly and poste- 

 riorly are obtuse, but remain separate throughout. Low^er 

 surface of head and abdomen naked, except for a series of 

 about 8 plateson each side between |)ectoral and ventral. First 

 dorsal ray about J the length of head ; pectoral spine ex- 

 tending to base of ventral or slightly beyond; ventrals 

 lounded, the spine not produced, the first or lirst and se-^iond 

 Ann. (I- Mny. .V. Hist. 8tr. 7. Vol. .wii. 7 



