308 A. E. Verrlll — North American Cephalopods. 



each side, between the bases of the 3d and 4th pairs of arms. Buc- 

 cal membrane with seven elongated points, covered on their inner 

 surfaces with small suckers ; in the female with a special organ (PI. 

 XXIX, fig, 4, s), below the beak, on the ventral side, for the attach- 

 ment of the spermatophores. 



Sessile arms angular ; basal web rudimentary or none ; suckers in 

 two rows, oblique, deep cup-shaped ; horny rings toothed on the 

 broad side, and surrounded with a median ridge. Male with one of 

 the ventral arms (usually the left) hectocotylized, near the tip, by an 

 enlargement of the bases of the pedicels of the suckers and a decrease, 

 or disappearance, of the cups. Tentacular arms long and strong, with 

 an expanded club, provided with marginal membranes and a dorsal 

 keel ; suckers, on the widest part, usually in four rows, those in the two 

 central rows larger, broad urceolate ; smaller ones cover the proxi- 

 mal and distal portions ; no connective suckers on the club or along 

 the arm. 



Oviduct large, developed only on the left side. Nidamental 

 glands large, in front of heart. Eggs in fusiform, gelatinous capsules, 

 attached by one end, and usually radially united into large clusters. 



LoligO Pealei Lesueur. 



Typical form. 



Loligo PeaJei Lesueur, .Journ. Acad. Nat. Sci. Philad., vol. ii, p. 92, Plate 8, 1821. 

 Loligo Pealii Blainville, Diet. Sci. Nat, xxvii, p. 144, 1823. 



Perussac and D'Orbigny, Ceph. Acetab.. p. 311, Calmars, PI. 11, figs. 1-5, PI. 20, 

 figs. 17-21 (details). 



Gray {Pealii), Catal. Moll. Brit. Mus., i. p. 71, 1849. 



Binney in Gould's Invert. Mass., ed. 2, p. 514, PI. 25, figs. 339, 340, (figure errone- 

 ously referred to 0. Bartramii). 



Verrill [Pealii), Report on Invert. Vineyard Sd., pp. 440, 635 (sep. copies, p. 341), 

 PI. 20, figs. 102-105, 1877. 



Trj^on {Pealii), Man. Concli., i, p. 142, PI. 51, figs. 133-140, (figs, from Per. and 

 D'Orb., and Dekay). 



Verrill, Amer. Journ. Sci., iii, p. 281, 1872 ; Amer. Naturalist, viii, p. 170 (habits); 

 Amer. Journ. Sci., xix, p. 292, 1880 (descr.). 

 Loligo punctata Dekay, Nat. Hist. N. Y., Mollnsca, p. 3, PI. 1, fig. 1, 1843 (young). 



Binney, in Gould Invert. Mass., p. 513 (after Dekay). 



Tryon, Amer. Mar. Conch., p. 14, PI. 43, figs. 10, 11 (after Dekay). 



Variety^ borealis Verrill. 



Loligo Pealei. var. borealis Verrill, Amer. Journ. Sci., xix, p. 292, 1880. 



Variety, pallida Verrill. 



Loligo pallida Verrill, Rep. Invert. Viney. Sd., in Rep. U. S. Com. Fish and Fish- 

 eries, i, p. 635, [341], PI. 20, figs. 101, 101a, 1874. • 



