111. GOBIESOCID.E. t / 747 



to Puget Sound and Maine. Here described from an Alaskan specimen 



of " C. 



(Miillcr, Prodr. Zool. Dan. ix, 1777; Fabricius, Fauna Groenlandica, 1780, 134; Giin- 

 ther, iii, 157 : Cycloplerus orbls Giinther, iii, 158, 1861, specimen from Vaucouvers Island.) 



aa. Dorsal spines enveloped in a fleshy hump in. adult; gill-openings larger; ventral 

 disk small. ( Cyclopterm. ) 



1145. C. luBnjpass L. Lump-Sucker; Lump-fish. 



Olivaceous, with darker markings; skin punctulate. Head heavy, 

 almost round; interorbital space very wide, flattish; maxillary reaching 

 to or slightly beyond front of eye; gill-openings extending from level of 

 upper margin of eye to opposite middle of base of pectorals; length of 

 gill-opening about equal to base of pectoral, three-fifths length of head, 

 equal to length of ventral disk; a fleshy hump on the back, which, in 

 the adult, covers the spiuous dorsal; skin with small tubercles, and 

 about 7 rows of larger spinous plates; a median dorsal row, which 

 divides and forms two series behind the hump; two lateral rows, of 

 Avhich the lower has larger plates; one abdominal row on each side. 

 Head 3; depth 2. D. about V1I-10; A. 10. North Atlantic; rather 

 common on the coasts of America and Europe. 



(Linnaeus, Syst. Nat. ; Giiuther, iii, 155: Lumpux anglorum Dekay, N. Y. Fauna, Fish. 

 305.) 



FAMILY CXI GOBIESOCID^E. 



Body rather elongate, broad and depressed in front, covered by 

 smooth, naked skin; mouth moderate; upper jaw protractile; teeth 

 usually rather strong, the anterior conical or incisor-like; posterior 

 canines sometimes present; no bony stay from suborbital across 

 cheeks; opercle reduced to a small spine-like projection concealed in 

 the skin, behind angle of the large preopercle; pseudobranchise small 

 or wanting ; gills 3 or 2-J ; gill-membranes broadly united, free or 

 united to the isthmus; .dorsal fin on the posterior part of the body, 

 opposite to the anal and similar to it, both fins without spines; ventral 

 fins wide apart, each with one concealed spine and 4 or 5 soft rays. 

 Between and behind the ventrals is a large sucking-disk, the ventrals 

 usually forming part of it. This sucking-disk, which is different in 

 structure from that of Cydopterus and Liparis, is thus described by 

 Dr. Giinther: 



u The whole disk is exceedingly large, subcircular, longer than broad, 

 its length being (often) one third of the whole length of the fish. The 



