154 TELEOSTEI : ACANTHOPTERI. — XX. 
427. L. liparis (L.). SeA Snaimu. Body thick; yellowish with 
purplish stripes. Disk 2 in head. Head 4; depth 3}. D. 33. 
A. 2s. P.34. L.5. Cape Cod, Ni) (ag 
Famity LXXVIII. CYCLOPTERIDA. 
(THE Lump SUCKERS.) 
Closely related to the Liparidide, but with the body short and 
thick, covered with thick skin, which is often tubercular or spinous. 
Vertebre fewer, about 28. Adhesive ventral disk well developed, 
enabling the fishes to fasten themselves firmly to rocks. Genera 3; 
species 4. In the Arctic seas. 
a. Spinous dorsal present; skin with bony plates and tubercles. 
6. Dorsal spines not disappearing ; ae opening a small slit on level of eye; 
sucking disk large. . . . - « « « Eumicrotrremovs, 197. 
6b. Dorsal spines in adult envale peat in a fleshy hump; gill openings larger; 
disk small, (55 a je Sie cm NL a) ee ees ee 
197. EUMICROTREMUS Gill. (edpixpds, very small ; rpjya, 
aperture.) 
428. E. spinosus (Miiller). Shields with small tubercles and 
slender flexible prickles. Olivaceous, the naked skin punctate. 
Head 8; depth 2. D. VI[-11. A.10. C.10. Maine, N. (£u.) 
(Lat., spined.) 
198. CYCLOPTERUS (Artedi) Linnzus. (kudos, circle; 
mrepov, fin.) 
429. C. lumpus L. Lump-sucker. Lump-risu. Shields 
without spines. Olivaceous, punctulate; young black, with green 
specks (Kingsley). Head 32; depth 2. D. VII-10. A.10. L.15. 
Chesapeake Bay, N. (£u.) (English, lump.) 
Hapiopocr. The next group shows no close relation to any 
other of our families. On account of the simple post-temporal (bifur- 
cate in most fishes), Professor Cope has made of the BATRACHID 
a special suborder, HAPLODOCI. 
Famity LXXIX. BATRACHIDA. (Tue Toap-FrisHEs.) 
Body depressed anteriorly, with compressed tail; head large, de- 
pressed, with well-developed mucous channels; mouth very large, 
with strong teeth; gills 3, a slit behind the last; no pseudobranchie ; 
gill membranes broadly united to isthmus; no bony suborbital stay; 
post- temporal (suprascapula) undivided; scales cycloid, small or 
want.ng; dorsals separate, the first of 2 or 3 low stout spines, the 
second, like the anal, very long. V. jugular, I, 2 or I, 3; P. broad, 
procurrent; no pyloric ceca. Vertebre 30 to 45. Pacabeongts fishes, 
chiefly of warm seas, some of them very large. The young attach 
themselves to rocks by means of an adhesive ventral disk, which 
