2096 Bulletin 4.7, United States National M^lseum. 

 778. CYCLOPTERUS (Artedi) Linnaeus. 



(LUMPFISHES.) 



Lumpus, GrBSNER, Hist. Anim., IV, 1284, 1588 (nonbinomial). 

 Cyclopterus, ARTEDI, Genera Pise., 62,1738 (nonbinomial). 

 Cyclopterus, LINNAEUS, Syst. Nat., Ed. xi, 260, 1788 (lumpus). 

 Lumpus, McMURTRiE, in Cuvier, Anim. Kingd., 1831 (vulgaris). 



Body more or less compressed toward the back, somewhat triangular in 

 a transverse section at the first dorsal, covered with conical, rough, bony 

 tubercles; head short, thick, subquadrangular in a cross section; snout 

 blunt, rounded; mouth anterior, opening slightly upward; teeth simple, 

 small, arranged in a band; eye moderate, lateral; dorsals 2; caudal dis- 

 tinct; disk moderately large, anterior below the head; no barbels about 

 the mouth; first dorsal fin in the adult completely hidden by the skin, 

 the larger tubercles of the flanks, though in regular series, having a scat- 

 tered appearance. One species, reaching a considerable size, in the north 

 Atlantic. (nvKhoS, circle; Ttrepov, fin.) 



2434. CYCLOPTERUS LUMPUS, Linnaeus. 



(LUMPFISH ; COCK AND HEN PADDLE ; LUMP SUCKER.) 



Head 5 in entire length ; depth 2 ; D. YI * to VIII, 11 ; A. 9 or 10 ; ventral 

 6; pectoral 20; caudal 12 to 14; branchiostegals 6; vertebra? 11 -f- 18 = 29. 

 Body massive, compressed, subtriangular in transverse section through 

 the middle, belly flattened, the portion behind the abdominal chamber 

 much compressed, and less than the length of the body proper. 

 Head short, subquadrangular in transverse section, forehead broad, 

 flattened; nape high; snout short, broad, blunt; mouth wide, anterior, 

 opening with a slight upward direction, extending backward almost to 

 a vertical from the front margin of the eye. Eyes lateral, near the top 

 of the head, as long as the snout, as long as the head and % as wide as 

 the interorbital space. Forehead broad, depressed, convex. Nostrils 

 small, the hinder smaller, near the eyes on interorbital space, the anterior 

 farther forward, halfway to the mouth, with a short tube. Gill opening 

 moderately wide, its lower third in front of the base of the pectoral. Fins 

 with rounded margins, rough, with small tubercles. First dorsal distinct 

 on very young individuals, variable in shape, thick and fleshy, with weak 

 rays in older stages; second dorsal distinct, broad, rounded; caudal 

 broad, subtruncate or rounded posteriorly; anal moderate, opposite the 

 second dorsal, which it resembles in shape; pectorals broad, rounded, 

 fringed, not indented at the sides of the disk. Disk little longer than 

 wide, about the width of the head, or nearly f of the length of the latter. 

 Skin thickly sown with small, irregular subconical tubercles, the sides of 

 which are roughened with small, conical protuberances. On older indi- 

 viduals, larger, longitudinally compressed tubercles form a vertical series 

 from the nape over the first dorsal ; a series of 3 others stands at each side 



* ?S e f llowin g formula is given for British specimens : Dorsal IV to VII, 10 or 11 ; 

 anal 9 or 10; pectoral 20 or 21, ventral 6; caudal 10 or 11. 



