158 TELEOSTEL : ACANTHOPTERL — XX. 
e. Canine teeth none. .« . . « . » IsEsTHEs, 207. 
ee. Canine teeth in one or both j jaws behind the other teeth. 
HyPLEUROCHILUS, 208. 
aa. Teeth conic (not like comb-teeth); D. (in our genera) of spines only; 
vertebre very numerous; lateral line not bent; body scaly; species 
chiefly Arctic. 
JF. Gill openings not continued forward below, the membranes broadly 
united. V. minute or wanting. (Xiphidiine.) 
g- Lateral line none; V. rudimentary; gill membrane free from isth- 
mus; A. with 2 small spines; no pyloric ceca. MURANOIDES, 209. 
Jf. Gill openings prolonged forward below, separated by a narrow 
isthmus; P. long; V. well developed; oviparous; herbivorous. 
(Sticheine.) 
h. Lateral line present. 
zt. Lateral line forked or duplicated. . EumMEsoGRAMMUS, 210. 
ai, Lateralline simple. . . . . . . . . « SticHaus, 211. 
hh. Lateral line wanting; teeth on jaws only. LepTroBLeNnnius, 212. 
206. CHASMODES Cuv. & Val. (yaopadys, yawning.) 
437. C. bosquianus (Lacépéde). Orbital tentacle minute or 
wanting; maxillary reaching beyond eye; ¢ olive green with 9 blue 
lines; head and 1st D. with orange; 9 dark green, reticulated and 
barred. Head 34; depth 34. D. XI, 19. A. 20. L.3. N.Y. 
to La. (To M. Bose, a zealous collector of the fishes of S. C.) 
207. ISESTHES Jordan & Gilbert. (foos, equal; éaOia, to eat.) 
438. I. hentz (Le Sueur). Orbital cirrus bifid at tip, as long as 
D. spines. D. high, the spines stiff. Olive, with vague bars; head 
with distinct black spots. Head 32; depth 34. D. XII, 15. A.19. 
L. 24. Md.to La. (BI. punctatus Wood; name preoccupied.) (To 
Mr. Hentz, an early entomologist.) 
208. HYPLEUROCHILUS Gill. (é, upsilon; aeupér, side; 
xeios, lip.) 
439. H. geminatus (Wood). Orbital cirrus branched, very high 
in ¢; D. spines slender. Olive brown, back and fins with black 
spots in g. Head 34; depth4. D. XI,15. A.18. L. 2}. Va. 
to Texas, with the two preceding and others, among oyster shells 
and clusters of tunicates; also about ballast piles. (Bl. multifilis 
Girard, ¢.) (Lat., twin.) 
209. MURZZNOIDES Lacépéde. (paiva, moray ; eidos, form.) 
a. Ventrals present, I, 1. 
440. M. gunnellus (L.). Butter-riso. Head naked. Brown 
with darker bars; black ocelli along base of D. Head 8; depth 9. 
D. LXXVIII. A. IT, 38. Vert. 85. L. 12. Labrador to Va., 
common in sea weed, N. (Eu.) (From “gunnel,” gunwale, wrongly 
supposed to be its English name.) 
