10 Pisces. 
PISCES. 
subcyliadrical and translucent ; head as in PleurolepiSj but entirely naked ; 
body entirely naked excepting caudal peduncle, which is sparsely covered 
with thin imbedded scales, and a series of rather large scales along the 
sides, on which the lateral line runs ; upper ja^ somewhat protractile ; 
mouth rather wide, nearly terminal ; a single anal spine. 4. Icaniy 
sp. n., id., Bull. Nat. Mus. x. p. 6, Louisiana. 
Nanostoma (Putn. MSS.), g. n., characterized, for Pcecilichthys zonalis, 
Cope ; id. 1. c. p. 6. 
Hadropterus tessellatus, sp. n. (or Boleosoma tessellatum, Thomps.), uh 
1. c. p. 7. 
Rheocrypta, g. n., allied to Imostoma and Alvordius. Body rather 
slender and elongate, with pretty large, rather long, and somewhat 
narrow head, like Boleosoma ; mouth small, horizontal sub-inferior, with 
weak teeth in jaws, 6 or 6 teeth on vomer, none on palatines j upper 
jaw protractile, separated by distinct furrow from forehead ; 2 dis- 
tinct dorsals, second rather smaller than* first and anal, anal spines 2 ; 
ventral region with a series of enlarged plates, caducous, or replaced by 
a scaleless strip ; cheeks naked ; opercles with a few scales ; lateral line 
complete. R. copelandi, sp. n., id. 1. c. p. 9, Indiana. 
A rlina atripinnis, sp, n., id. 1. c. p. 10, Tennessee. 
\_Lucioperca'] Stkoskthium. Synonymy and descriptions of the Ame- 
rican species ; id. 1. o. pp. 43-49. 
Anthias richardsoni, Gthr., = Perea lepidoptera, Forst. ; Hutton, Tr. 
N. Z. Inst. ix. p. 353. 
Serranus olfax, Jen., redescribed ; A. Gunther, P. Z. S. 1877, p. 67. 
Pseudoserranus bicolor, sp. n., Kossmann & Rauber, Reise Rothen 
Meer, i. p. 7, pi. i. fig. 1, Red Sea. 
Mesoprion. Diagnoses of the Indo-pelagic species; Bleeker, Atl. 
Ichth. viii. pp. 49-76. 
Ambassis. Diagnoses of Indo-pelagic species, id. op. cit. pp. 131-140. 
Copelandia, g. n., allied to EnneacantJius, Hemioplites, and Centrarchus. 
D. 10 spines, A. 4 spines, strong, soft rays high ; caudal rounded ; opercle 
emarginate, with black dermal border, a supernumerary maxillary bone ; 
palatine teeth, appendages of anterior gill-arch long, and in small 
number. C. eriarcha, sp. n., Jordan, P. Ac. Philad. 1877, p. 56, Wis- 
consin. 
Comparison of Centrarchine genera ; id., 1. c. pp. 58-60, & 77. 
Analysis, lists, and descriptions ; id., Bull. Nat. Mus. x. pp. 20-43. 
Eupomotis, substituted for Pomotis, Gill & Jordan, “ Field and Forest,” 
1877, ii. p. 190 ; Jordan, 1. c. p. 20. 
Helioperca, g. n., for Pomotis incisor, C. V. ; id., Ann. Lyc. N. York, 
xi. p. 355. 
Xenotis, g. n., separated from Lepiopomus by character of gill-rakers, 
which are short, comparatively thick, soft, cartilaginous or unossified 
base, nearly destitute of teeth ; id,, P. Ac. Philad. 1877, p. 76, and Bull. 
Nat. Mus. X. p. 21. Species described, id. 1. c. pp. 22, 23, 40-42. 
Ichthelis sanguinolentus, Jord. (identified with I. aurita, Raf.), fonamed 
X. lythrochloris, and I. macrochira, Jord., renamed X. aureolus ; id. Bull. 
Nat. Mus. ix. & x. pp. 40-41. 
