S^8 



A. E. Verrill — North American Cephatopods. 



not be seen with the naked eye ; they are deep, cup-shaped, with a 

 small circular aperture, supported by a horny rim, which is often 

 armed with two or three sharp teeth on one side (fig. 3e). 



Color of body and arms, so far as preserved, in alcohol, deep 

 brownish orange ; on the upper side of the back and caudal fin the 

 color is better preserved, and shows small, ocellated, circular spots of 

 orange-brown, with an inner circle of whitish, and a central spot of 

 jjurplish brown. Similar spots also exist on the head and arms, and 

 also on the lower side of the body, where the color is best preserved. 



A considerable amount of a bright orange oily fluid, insoluble in 

 alcohol, exuded from the viscera. Examined by means of the spectro- 

 scope this fluid absorbed part of the green, all of the blue, and most 

 of the violet rays. The stomach contained fragments of small Crus- 

 tacea. The pen is pale yellow, thin, and slender anteriorly, with two 

 sublateral costse, and narrow delicate margins outside the costae ; in 

 the middle it becomes still thinner and narrower, with the margin 

 inrolled ; beyond, the margins become much wider and then unite 

 together ventrally, forming a long, hollow, conical portion, extend- 

 ing to the acute posterior tip ; this portion is not so broad as deep, 

 and has a slio-ht dorsal keel and ventral groove. 



