362 MEMOIRS OF THE CARNEGIE MUSEUM. 



2. Vandellia plazai Castelnau. (Plate LIII, fig. 3.) 

 Vandellia plazaii Castelnau, Anim. Amer. du Sud, Poissons, 1855, p. 51, pi. 28, 

 fig. 1 (Ucayale); Vaillant, Bull. Soc. Philom. (7), IV, 1880, p. 159 (Calderon); 

 Eigenmann & Eigenmann, Proc. Cal. Acad. Sci. (2), II, 1889, p. 55 (Lake 

 Hyanuary); Occasional Papers Cal. Acad. Sci., I, 1890, p. 345; Proc. U. S. 

 Nat. Mus., XIV, 1891, p. 37; Pellegrin, Bull. Soc. Philom. Paris (10), I, 

 1909, p. ? (Calderon); Eigenmann, Reports Princeton Univ. Exped. Pata- 

 gonia, III, 1910, p. 401; Ribeiro, Comm. de Linhas Telegraphicas Estra- 

 tegicas de Matto-Grosso ao Amazonas, Annexo 5, 1912, p. 30 (Manaos). 

 Vandellia plazw Gunther, Cat. Fishes Brit. Mus., V, 1864, p. 277. 



Habitat. — Middle and Upper Amazon basin; Ucayale, Calderon; Lake Hyan- 

 uary. 



This species also is known from but few specimens, as follows: 

 Jardin des Plantes, Paris, ? Ucayale. Castelnau. 

 Jarclin des Plantes, Paris, one, Calderon. Jobert. 



Mus. Comp. Zool., Cambridge, Mass., one, 125 mm., Lake Hyanuary. Bourget. 

 Mus. Nac. Rio de Janeiro, one, 67 mm., Manaos? Ribeiro. 

 7541, C. M., one, 66 mm. Dec. 9, 1909. Santarem. Haseman. 

 It is principally distinguished by its more elongate form. 



Fig. 30. Vandellia plazai Castelnau. Cam. Mus., No. 7541. 



Head 9-11 (10-12 in the total length); depth 12-15.3 in the total length; 

 D. 9-10; A. 8-9; P. 7; twelve to sixteen opercular spines in 3 or 4 rows, seven or 

 eight on the interopercle ; head more rounded than in cirrhosa; barbel less than half 

 the length of the head; pectoral as long as the head; 8 or 9 teeth in the upper jaw. 



3. Vandellia wieneri Pellegrin. 

 Vandellia wieneri Pellegrin, C. R. Ac. Sc, November 29, Vol. 149, 1909, p. 1016; 

 Bull. Soc. Philom. Paris (1), X, 1909, p. 199, page of reprint 3, figure in the 



