A. E. Verrill — North American Gephalopods. 291 



suckers with larger pedicels, the horny ring with several small denti- 

 cles. All the suckers have a circle of minute scales or plates around 

 the aperture. Tentacles long and slender, the terminal part dilated 

 into a narrow club, with a membranous keel ; the club is covered 

 with minute denticulated suckers, like the outer ones of the sessile 

 arms ; smaller suckers extend for some distance along the arm ; cen- 

 ter of the club, with one or two larger suckers, resembling the median 

 ones of the sessile arms, their horny rings having a small aperture, 

 and bearing, on the outside, a large claw-like hook. 



Gray overlooked the free eyelids in this genus, and on that 

 account placed it with Loligo. 



Gonatus Fabricii Verriii. 



Sepia loligo Fabricius, Fauna Groenlandica, p. 358, 1780, (good description). 

 Onychoteuthis Fabricii Lichtenstein, Isis, xix, 1818, (t. Gray). 



Moller, Kroyer's Tidss., iv, p. 76, 1842. 

 Loligo Fabricii Blainville, Diet. Sci. Nat., xxvii, p. 138, 1823. 

 Onychoteuthis f amcena Moller, Ind. Moll. Gronl., Kroyer's Tidss., iv, p. 76, 1842, 



(young.) 

 Gonatus amoe,na Gray, Catal. Moll. Brit. Mus., i. Cephal. Antep., p. 68, 1849, 

 Gonatus amoenus G. 0. Sars, Moll. Reg. Arct. Norvegise, p. 336, pi. 31, figs. 1-15 

 (excellent); pi. xvii, fig. 2 (dentition), 1878, 

 Tryon, Man. Conch., i, p. 168, pi. 73, fig. 290, (descr. from Gray, fig. from H. & A, 



Adams, Genera). 

 Verrill, Proc. Nat. Mus., iii, p. 362, 1880. 



Plate XLV, figures 1-1 &, 2-2d. 



Body small, elongated, rather slender, tapering backward ; front 

 dorsal edge of mantle extending forward in a blunt lobe or angle. 

 Caudal fin very short, but broad, nearly twice as broad as long, the 

 front edges extending forward beyond the insertion, as rounded 

 lobes, lateral angles subacute, posterior angle obtuse. Arms stout and 

 rather long, the dorsal and ventral pairs stouter than the lateral. 

 All the arms bear four rows of small suckers ; those of the two 

 median rows (2c, 2d) are larger than the outer ones, with shorter 

 pedicels, and the very oblique horny ring, having a small opening, is 

 developed into a single, large, hooked tooth on the outer side ; around 

 the inner side of the aperture there is a partial circle of small flat 

 scales, in several rows. The suckers of the outer rows {2a, 2b) are 

 about two-thirds as large, with longer and more slender pedicels, and 

 with lateral apertures; the horny ring has about five acute-triangular 

 teeth on the outer margin, and there are several rows of small scales 

 forming a broad circle entirely around the aperture. The tentacular 



Trans. Conn. Acad., Vol. V. 36 January, 1881. 



