: CENTRARCHID&. 21 
motis and Apomotis of Rafinesque. The fact that Pomotis has been long 
in use and is a very familiar name is its only claim for retention, a 
claim which does not appear to justify its retention in opposition to 
established rules of nomenclature. ' 
The name Pomotis being therefore untenable for any genus of Cen- 
trarchide, Prof. Gill and myself have proposed the name Hupomotis for 
Sparus aureus Walbaum (= Pomotis vulgaris Cavier) and its congeners. 
Three species of this genus are known from autopsy to Prof. Gill and 
- myself—H. aureus (Walb.), H. speciosus (Holbrook), and H. pallidus 
(Agassiz). 
11. EUPOMOTIS PALLIDUS, (Agassiz) Gill & Jordan. 
Pomotis pallidus, Ac., Am. Journ. Sci. Arts, 1854, 303.—JoRDAN, Man. Vert. 1876, 240. 
This is a large stout species, somewhat elongate, resembling Lepiopo- 
mus pallidus in form and coloration. Head 3 in length; depth 23; eye 4. 
Head and profile scarcely gibbous; snout protruding; mouth rather 
large, somewhat oblique, reaching the front of eye; eye rather large; 
opercular flap wide and rounded, shorter than in H. aureus, with a 
rather wide pale border, chiefly below and behind. Scales very large, 
4-35-13, about 4 rows on the cheeks. Spines rather high and strong, 
the longest dorsal spine as Jong as from muzzle past middle of pupil; 
soft fins high; pectorals long, but not reaching anal. Gill-rakers short 
and weak. 
Color pale olive or brassy ; no trace of blue or orange in spirits ; some 
blackish markings on last rays, but hardly a spot. Pharyngeal teeth 
very strongly “paved”, as in the related species. Described from No. 
4157, National Museum. 
Habitat.—Tennessee River (Agassiz). Mississippi River, at Saint 
Louis; Alabama River (specimens in National Museum). 
12. XENOTIS. 
Xenotis, JORDAN, Proc. Acad. Nat. Sci. Phila. 1877, 76. 
The peculiar character of the gill-rakers, which separates this genus 
from Lepiopomus, has not yet been fully defined, and indeed a more minute 
study is still desirable, although it may be readily recognized. In Lepio- 
pomus, the gill-rakers of the anterior branchial arch are comparatively 
long, somewhat firm, having apparently an ossified basis, and they are 
provided toward their tip, on one side at least, with minute, pointed, 
tooth-like roughnesses. These teeth may be readily felt with the 
