PISCES. 167 
89. Styffogcncs (g. n.) j S(. humhohUii, sp. n. (p. 223) ; Pimelodus cyclopum 
(Humb.) ia probably a second species of this genus. 
90. Brontes (0. & V.) with 1 species. 
91. Astrohlepus (Humb.) with 1 species. 
92. Callichthys (L.) with 15 species, C. affinis (p. 226) being new. 
93. Plecostomus (Gthr.) with 17 species, PL wuchereri and PI. hrevicaudd 
being new (p. 235). 
94. Liposarcus (g. n.) with 3 species, Ilypostomus multiradiatm (Han- 
cock) being the type ; Liposarcus altipinnisj sp. n., from Brazil (p. 239). 
95. Chectostomus (Heck.) with 28 species, 6 of which are new : Ch. oli- 
gospilus (p. 244); Ch. schomhurgkii (p. 245); Ch. trinitatis (p. 246); Ch, 
hoplogenys (p. 247) ; Ch. leucostictus (p. 248) ; Ch. microps (p. 250). 
96. Pterygoplichtliys (Gill) with 4 species. 
97. Rhinelepts (Spix) with 2 species. 
^S. ^ Acanthicus (Spix) with 2 species. 
99. Loricaria (L.) with 20 species. 
100. Acestra (Kner) with 4 species,two of which are new : A. amazonum 
and A. gladiolus (p. 261). 
101. Sisor (B. H.) with 1 species. 
102. Erethistes (M. & T.) with 1 species. 
103. Pseudccheneis (Blyth) with 1 species. 
104. Exostoma (Blyth) with 2 species. 
O. Aspredinina. 
105. Bunocepholus (Kner) with 2 species. 
100. Bunoccphalichthys (Blkr.) with 1 species. 
107. Asprcdo (L.) with 6 species. 
Seventh subfamily : SiLuniDiE opisthopter^. 
P. Nematogenyina. 
108. Heptapterus (Blkr.) with 2 species. , 
109. Nenmtogenys (Girard) with 1 species. 
Q. Trichomycterina. 
110. Trichomycterus (Val.) with 10 species. 
111. Eremophilus (Humb.) with 1 species, 
112. Pariodon (Kner) with 1 species. 
Eighth subfamily : Silurid^ BRANcmcoLiE. 
R. Stcgophilina. 
113. Stegophilus (Rhrdt.) with 1 species. 
114. Vandellia (C. & V.) with 2 species. 
ITypophthalmm longifilis (C. & V.) has been figured by Bleeker, Silur, 
Sutin. tab. 15. fig. 3. 
Macrones. A new species from Siam, probably belonging to this genus, has 
been described by Dr. Bleeker under the name oi Heterobagrus (g. n.) hocourti. 
Versl. en Mededeel. Akad. Wet. Amsterd. 1864, xvi. p. 355 c. fig. 
Pseudohagrus. Silurus calvaritis (Basil.), referred by Dr. Gunther as a 
doubtful synonym to Ps. fulvidraco (Richards.), is, according to Dr. Bleeker’s 
view, the type of a distinct genus, Pelteohagrus. Nederl. Tydschr. Dierk. 
1864, p. 9. 
