Boone, Mollusca, Cruises of "Eagle" and Ara," 1921-28 167 



taf. 3, figs. 13-25, taf. 4, figs. 5, 6, 1912 (with anatomic descrip- 

 tion and full synonymy). — Joubin, Res. Campag. Sci. Monaco, 

 fasc. LXVII, p. 107, 1924. 



Family: OMMATOSTREPHIDAE. 



Subfamily: Illicinae. 



Genus : ILLEX Steenstrup. 



Illex illecebrosus illecebrosus (Lesuer). 



Plates 105, 106 and text figure 12. 

 Types : Lesueur 's original description was based on a drawing of a 

 specimen, which he examined at Sandy Bay, Newfoundland, in 1816 

 and which drawing is deposited in the collections of the Philadelphia 



Text fig. 12. — Illex illecebrosus illecebrosus (Lesueur). A. Sucker from tentacu- 

 lar arm. B. Sucker from sessile arm. C. Dentition of sucker from sessile arm. 



All X 16. 



Academy of Natural Sciences. Verrill (in 1872) stated that Lesueur 's 

 description equals 0. sagittatus Binney but not the figure (pi. 25, fig. 

 340), which is a Loligo (f L. pealeii, female). Verrill described the 

 species without designating the depository of his material, which was 

 collected on the New England coast. 



Distribution : Found on the East American coast from the Arctic 

 Ocean southward to Cape Cod, Mass., but most abundantly from New- 

 foundland to Cape Cod. This is a rapid-swimming, near-the-surface 

 species, ranging from near the coast to deep water. It is one of the 

 swiftest swimmers of the sea, consequently it is rarely caught in 

 dredging. 



