122 
PISCES. 
Teeth in jay in a single series without posterior canines. L. lat. con- 
tinuous. Dorsal only with a few simple flexible rays before the numerous 
branched rays, with no distinct spines. D. A. Type, i\T./ewes- 
tratus^ sp. n., Juan Fernandez, Steindachner. SB. Ak. Wien, Ixxi.p. 461, 
2 . 
Novacula microlepis, sp. n., Vaillant & Sauvage, R. Z. (3) iii. p. 284, 
Sandwich Island. 
JuUs ballieuiy sp. n., iid. ibid. Sandwich Islands. 
Coris {Hemicoris) venusta^ ballieui, and rosea, spp. nn., iid. 1. c. pp. 285 
& 286, Sandwich Islands. 
Ohromidj}. 
Steindachner gives detailed descriptions of various South American 
species in two papers in SB. Ak. Wien, Ixx. pp. 501-523, and Ixxi. 
pp. 61-136. 
Redescriptions with critical remarks on the synonymy of known 
species are given, and figures of Acara autochthon, G thr., p. 502, pi. i. ; 
Geophagus brasiliensis, Q. & G., p. 511, pis. ii. & iii. ; Acara (Heros) 
spuria, Hect., var., p. 507, pi. iv. 
The following new genera and species are characterized : — 
• Crenicara. Body oval and compressed as in Acara. Spinous part of 
dorsal more developed than the rayed. Three anal spines in the single 
species. First branchial arch without skinny appendage. Praeopercu- 
lum finely and equally serrated. C. elegans, p. 99, pi. i. fig. 1, a, b, 
Amazons. 
Dicrossus. Body much elongate and moderately compressed 4s in 
Crenicichla. Pracoperculum finely serrated. Mouth, teeth in jaws, and 
gills as in Acara. L. lat. interrupted. Dorsal spines numerous. Scales 
rather large. D. maculatus, p. 102, Amazons. 
Saraca. Body much lengthened. Appendage to anterior branchial 
arch as in Geophagus. Rayed dorsal much the most developed. Three 
anal spines in the single species. Scales rather large. Praeopercular 
edge smooth. S. opercularis, p. 125, Amazons. 
Acara thayeri, p. 68, pi. i. fig. 2, a, b ; A. {Heros) crassa, p. 88 ; A. 
{Petenia) spectabilis, p. 96, pi. iv. Amazons. 
Geophagus thayeri, p. 108, pi. iii. fi^s. 2, a, b ; G. agassizi, p. Ill, 
pi. viii. fig. 2, a, b, Amazons. 
Chcetobranchus semifasciatus, p. 130, pi. vii. ; C. orbicularis, p. 133, 
pi. viii. figs. 1, a, b, Amazons. 
Chromis paterfamilias, sp. n., Lortet, 0. R. Ixxxi. pp. 1196-1198, 
Lake Tiberias. A fish, the male of which carries the eggs in the buccal 
cavity, the young even remaining there some time after they are hatched. 
ANAOANTHINI. 
Gadidj]. 
^ Motella septentrionalis, sp. n., Collett, Ann. N. H. (4) xv. p. 82, 
Norway. 
