4 NEW- YORK FAUNA — MOLLUSCA. 



traded, and the water forcibly ejected so as to propel them backward with great rapidity, 

 shooting like arrows through the water. They devour great numbers of small fish and crabs. 

 The species above described is the only one I have noticed on the coast of New- York, 

 although I think it highly probable that the six following, described in detail by Lesueur, will 

 also at no distant day be detected on our coast. The plate referred to for the punctata, con- 

 tains a figure of the cartilaginous, or rather membranous internal support ; a figure of the 

 oral apparatus (fig. 3) ; and a bunch of the egg-cases, or sea-grapes, as they are termed in 

 Europe, with an embryo of a sepia highly magnified. This congeries I found on the northern 

 shores of Long island. 



(EXTRA-LIMITAL.) 



L. pealii. (Lesueur, Ac. Sc. Vol. 2, p. 92, pi. 2. Pl. 38, fig. 354 of this work.) Surface covered 

 with transverse strise. Caudal extremity more than half the length of the body. Peduncles of the 

 suckers on the long arms attached to an undulating lateral membrane. Suckers on the short arms 

 obliquely truncated, each with six horny brown teeth. Length . South-Carolina. 



L. illecebrosa. (Id. lb. p. 95, pl. 10.) Arms two-thirds of the length of the body. Internal support 

 dilated at both ends. Colors varying from bright red to deep blue. Eyes tinged with yellow. 

 Length . Sandy Bay, Mass. 



L. barllingii. (Id. lb. pl. 9.) Lateral arms compressed, and with the inferior pair furnished with a 

 membrane upon all their exterior length. Arms long, filiform at their extremities. Internal sup- 

 port dilated near the middle, smaller at the ends. History imperfect. Deep blackish brown with 

 numerous reddish brown points. Gulf Stream. 



L. pavo. (Id. lb. p. 96, pl. 1 1. Pl. 38, fig. 253 of this work.) Body elongated, funnel-shaped 

 Eyes very large. Arms very short, depressed. Tail cordate, ending in a point. Internal support 

 subgelatinous, cylindrical, enlarged beneath, and terminating in a point. Color deep carmine 

 brown, with numerous large rounded spots intermixed with smaller ones. Length of body 10 

 inches. Sandy Bay, Mass. 



L. bartrami.* (Id. lb. p. 90, pl. 7. Pl. 37, fig. 352 of this work.) Arms subcompressed, with a 

 large membrane at their inner angles. Fins united, entire, forming the third part of a circle of 

 which the extremity of the tail is the centre. Suckers on the long arms in four rows ; on the 

 shorter ones, in but two. Internal support narrow, feeble, transparent, enlarged slightly above ; 

 cylindric, and ending in a small hollow cone beneath. Color violet blue passing into purple, with 

 numerous brown points. Coast of United States. 



L. brevipinna. (Id. lb. VoL 3, p. 282, pl. 10. Pl. 37, fig. 351 of this work.) Sac short, thick, 

 cylindric anteriorly; subcompressed, obtuse and rounded beneath. Fins narrow, rounded, distant, 

 half the length of the body ; lateral edges rounded. Beak prominent, horny. Support large 

 behind, narrow before. The long arms slender, much compressed at the end, and terminating in 

 a point. Length of body nearly three inches. Delaware Bay. 



* I do not understand why Ferussac should have cited this species under his group of Ldigo, which he says have no 

 suckers on the long arms. 



