PISCES. 169 
A. vaUhdennesii for the specimens in the Paris Museum.' Silur. Surin. 
p. 81. 
Euanemm nuchalis (Spix) has been figured by Bleeker, Silur. Surin. tab. 16. 
fig. 2 (^Auchenipterus dentatus). 
Auchenipterus mactdosus (C. & V.) is considered by Dr. Bleeker identical 
with Au. galeatus (L.), Silur. Surin. p. 45. However, it appears from an ex- 
amination of the specimens in the British Museum that both are distinct, 
Giinth. Fish. v. p. 196. Paraucheniptcrus galeatusy Blkr., is probably identical 
with Auchenipterus maculosuSy C. & V., Gthr. 
Auchenipterus nodosus has been described and figured by Dr. Bleeker, Silur. 
Surin. p. 43, tab. 11. fig. 1 & tab. 13. fig. 6. 
Doras granulosus (0. & V.) has been described by Dr. Bleeker under the 
name of Pterodoras granulosusy from a specimen in the Amsterdam Museum, 
Silur. Surin. p. 36. Dr. Gunther had referred this Doras granulosus as a 
doubtful synonym to D. muricatus. 
Doras cataphractm has been described by Dr. Bleeker under the name of 
Acanthodoras cntaphractuSy Silur. Surin. p. 40. Also the specimens in the 
Leyden Museum appear to lack the spine which was said by Gronow to 
exist in the adipose fin. 
CallicJithys. Dr. Bleeker (Silur. Surin. in Natuurk. Verhandl. Holl. Maatsch. 
Wet. Haarlem, 1864) has described the following known species : Callichthys 
iamoaid (p. 22), to which C. cadatus (0. & V.) is referred as synonymous; (7. 
littoralis {Hoplosternum Icevigatuniy p. 24) ; C. thoracatus (p. 26) ; C. longi/ilis 
(p.27). 
Plecosto7nus hicirrhosus is described by Dr. Bleeker under the new name of 
PI brasiliensis, Blkr. Silur. Surin. p. 7. This new name has been chosen 
because, in the opinion of the author, the species was described by Wil- 
lughby under the denomination ‘‘ Cataphractus brasiliensis et americaniisP 
Hence it appears that Dr. Bleeker goes back to the seventeenth century for 
the regeneration of our nomenclature I — The same author describes and 
figures Plecostomus guUatus (C. & V.) under the name of Pseudancistvm gut- 
tatus, 1. c. p. 10, tab. 2. fig. 2 ; tab. 3. fig. 3. 
Chcetostomus temminckii (C. & V.) is described and figured by Bleeker, 
Silur. Surin. p. 11, tab. 1. fig. 3 &tab. 3. fig. 2 (Aticistrus temminckii). It is 
said to differ from Ch. cirrhosus in the length of the pectoral spines ; but this 
is a rather dubious character. Chcetostomus serratus (C. & V.), ibid. p. 13, 
tab. 1. fig. 2 & tab. 3. fig. 1 {Pseudacanthicus serratus). 
Loricaria. Dr. Bleeker (Silur. Surin. in Natuurk. Verhandl. Holl. Maatsch. 
Wet. Haarlem, 1864) has described the following known species : L. macidata 
{JLoricariicMhys maculatusy p. 16), L. dura (p. 18), and X. parahemiodon 
(Parahemiodon typuSy p. 20, tab. 6. fig. 1 & tab. 13. fig. 1). 
Asprcdo. Dr. Gunther has made the observation, that the females of 
these fishes carry their ova in small shallow pouches on the belly, and thal 
the appendages which have been found on the belly of certain specimens 
serve for the purpose of keeping the eggs attached to the abdominal surface. 
Catal. Fish. v. p. 267. 
Dr. Bleeker has described the following known species, Silur. Surin. in 
Natuurk. Verh. Holl. Maatsch. Wet. Haarlem, 1864 : Aspreko batrachus (L.), 
