PHYSOSTOMI. 
Pisces, ol 
pi. ii. figs. 1-3; T.fasciatus, Cuv. (= T. obscurus, Hensel), p. 578, figured, 
pi. i. fig. 3 : id. 1. c. 
Luetkenia, g. n. Habit of Tetragonopterus, with belly compressed and 
cutting as in Chalcinus ; mouth small, like Tetragonopterus ; teeth in 
intermaxillary and mandible, uniserial, compressed, many- pointed ; 
dorsal above ventral ; anal long ; nostrils behind one another ; gill 
opening wide ; membranes not confluent nor grown to the isthmus. L. 
insignisy sp. n., id. 1. c. p. 86, pi. viii. fig. 1, Amazons. 
BryconferoXy p. 583, pi. iv. figs. 1 & 1 «, and B. insignia, p. 587, pi. iv. 
figs. 2 & 2a; id. 1. c., South-eastern Brazil, spp. nu. 
Brycon reinhardti, Ltk., redescribed and figured, p. 585, pi. iii. figs. 3 
& 3 a ; Megalohrycon and Chalcinopsis, Kn., = Brycon ; B. striatulm, 
Kn., = chagrensisy Kn., p. 32. Id. 1. c. 
Bryconops {Creatochanes) melanurus, Bl. Steindachner redescribes and 
figures this species which he considers as a Bryconops, its position in 
Tetragonopterus being arbitrary; op. cit. Ixxii. p. 19, pi. ii. fig. 7. 
Creagrutus nasutus, sp. n., Gunther, Ann. N. H. (4) xvii. p. 400, Peru. 
Chalcinus angulatus, Spix (= C. nematurus, Kuer, and Triportheus 
Jlavus, Cope), p. 96, hrachypomus, C. V., p. 97, culter, Cope, p. 100, and 
elongatus, Gthr., p. 102, noticed ; C. kneri, sp. n., p. 98, pi. xii. fig. 4, 
Amazons. Id. op. cit. Ixxiv. 
Paragoniates, g. n. Body elongate, strongly compressed, with cutting 
ventral edge (not toothed) ; dorsal short, behind the middle of the 
body ; anal very long ; maxillary teeth uniserial, pointed ; the larger 
anterior in the mandible and all the intermaxillary teeth with 1-2 short 
accessory points ; cleft of mouth extremely long ; scales large ; lateral 
line weakly developed (only anteriorly). P. alburnvs, p. 117, pi. viii. 
fig. 3, P. muelleriy p. 120, Amazons, and P. microlepis, p. 591, Rio 
Janeiro, id. 1. c. spp. nn. 
Xiphorrhamphus jenynsi, Gthr. & Steind., A. Cuv., redescribed 
and figured, p. 593, pi. iii. fig. 4; X. macrolepis, sp. n., p. 594, Brazil. 
Id.l.c. , 
Xiphostoma tcedo, Cope, = maculatum, C. V., p. 131 ; A. longipinne 
[-na, vel -wis], sp. n., p. 132, Amazons. Id. 1. c. 
Nannostomus (Gthr., redefined) trifasciatus, p. 123, pl.ix. fig. 2, egues, 
p. 126, pi. ix. fig. 3, unifasciaius, p. 127, pi. ix. fig. 1, anomalus, p. 129, 
spp. nn., id. 1. c. Amazons. 
Distichodus abbreviatus, sp. n., Peters, 1. c. p. 845, Congo. 
E<\ Putnam. Notes on the Mammoth Cave fishes. P. Bost. Soc. xvii. 
pp. 222-225. 
Pantosteus, g. n., E. D. Cope, in Wheeler’s Rep. Geogr. Explor. W. of 
100th mer. V. chap. vi. p. 673. Catostomina: iov Minomus platyrrhynchus,. 
CyPlUNlDiE. 
