[99] CEPHALOPODS OF NORTHEASTERN COAST OF AMERICA. 309 



lobulated organs, intimately united together and connected with the 

 venae cavae, and mostly situated below and in front of the heart, but 

 there are two more compact glandular portions (r 1 ) extending, as usual, 

 backward along each of tbe posterior venae cavae (vc") in the form of a 

 long pyriform gland. Just in front of the bases of the gills, on each 

 side, there is a circular opening (u) through the peritoneal membrane, 

 which probably gives exit to the urinary excretions. 



The reproductive organs of the female, however, present the greatest 

 divergence from Loligo and allied forms. Instead of having a single 

 large oviduct on the left side only, and opening far forward, we find in 

 this genus two small oviducts (od), symmetrically placed and opening 

 much farther back. The ends are free, near the bases of the gills, but 

 behind them, instead of passing over the dorsal sides of the bases of the 

 gills, as in Loligo and other genera. The apertures of the oviducts are 

 simple elongated slits. Moreover, instead of the large and very con- 

 spicuous, nidamental glands, situated in front of the heart, as in Loligo, 

 we find in Ommastrephes much smaller and simpler glands to?), situated 

 much farther back, side by side, near the median line, behind the heart. 



The ovary (ov) is a long, pyriform, lobulated organ; its anterior end 

 is attached to the posterior end of the stomach, and is divided into sev- 

 eral short lobes, which clasp the end of the stomach ; its small posterior 

 eud extends backward into the concavity of the hooded portion of the 

 pen {$"). 



The spermary or testicle of the male (Plate XIX, fig. 1, t) occu- 

 pies the same position as the ovary ; it is a more compact organ, with a 

 smoother surface, and the anterior lobes are longer and narrower and 

 extend farther forward along the sides of the stomach. The prostate 

 gland and other male organs resemble those of Loligo (see Plate XXIX, 

 figs. 1, 2). 



It must be borne in mind, however, that none of the specimens ex- 

 amined were in their breeding season. Consequently, the reproductive 

 organs were all much smaller and less conspicuous than they would 

 have been in breeding individuals. This is particularly the case with 

 the ovaries and oviducts, but the same remark would also apply to 

 the nidamental glands, which might assume a different form, as well as 

 much greater volume, at the breeding season. 



The specimens dissected had all been preserved in alcohol, which 

 would cause these organs to appear smaller than is natural. 



Sthenoteuthis Verrill. 



Ommastrephes (pars) D'Orbigny, Voy. Aniex. Me"rid., Moll. (1835?); Ce"phal. Ac6tab., 



1839-'48. 

 Sthenoteuthis Verrill, Trans. Conn. Acad., vol. v, p. 229,, Feb., 1880; Auier. Journ. Sci., 



vol. xix, p. 289, April, 1880. 

 Ommatostrephes Steenstrup, Oversigt K. Danske Vidensk. Selsk. Forbandl., 1880, p. 89, 



(sep. copy, p. 19, received Aug., 1880). 



This group was instituted to include certain species of squids remark- 

 able for the connective suckers on the tentacular arms, for the large 



