OF CONCHOLOGY. 97 



•43 ; width of back, -46 ; width of fins, 'QQ transversely, -23 

 longitudinally. Length of head and collar on the dorsal line, 

 •4 ; total length, 2-2 in. Diameter of eye, -2 in. Cupules in 

 two rows. Two hooks in the median line of the extremities of 

 each of the tentacular arms between the cupules. Mouth sur- 

 rounded by a six-keeled frill of integument. 



Habitat, caught in the towing net off San Francisco, Cal., in 

 lat. 37° 22' and Ion. 140° 10', one specimen, Dall., July 17, 

 1865. Coll. reg. No. 302. 



This pretty little species is doubtfully referred to the genus 

 Onychoteuthis. It is well characterized by its pot-bellied 

 appearance and narrow rounded fins. The posterior part of the 

 funnel is very globose. 



LOLIGINIDiE. 



LOLIOLUS, Steenstrup. 

 Loliolus, Stp., Wiegm. Arch. 1856, i, pi. x, p. 256. 



LOLIOLUS STBENSTRUPI, n. S. 



Animal in general form much resembling L. typus. Body 

 elongate, cylindrical, tapering near the end to a rounded point 

 behind. Fins semicircular, on each side, continuous around the 

 end of the body, but very narrow there. 



Anterior edge of the body with a wide shallow sinus below the 

 siphon, produced at each side of it, and with a linguiform pro- 

 cess in the median line of the back, extending forward between 

 the eyes. Anterior arms with two rows of cupules, a web 

 extending from the outer edge of each to the third pair, forming 

 a sort of sheath for the long second pair. Second pair cylindri- 

 cal, lanceolate at the ends, with about three rows of cupules, 

 very irregularly disposed; no hooks. Third pair stout and 

 thick ; fourth smaller ; fifth quite small ; all with two rows of 

 cupules. Respective lengths : i, -3 ; ii, '1 ; iii, *4 ; iv, -2 ; v, 

 •14 in. A band of membrane, forming a six-sided figure, passed 

 around the mouth, inside of tthe bases of the arms. Total 

 length, 1-7 inch. Diameter of body, -3 ; of disk of fins, -5. 

 Length of body, -8 in. Color yellowish white, with round 

 spots and ocelli of various shades of purple; a large purple 

 blotch behind each eye. 



"Pen" deeply grooved in the middle, as long as the body, 

 shaped like that of Sepioteuthis as figured by Chenu, but with 

 the "quill' : proportionately longer. 



Habitat, Gulf of California, obtained near the mouth of the 

 Colorado River by Dr. Edward Palmer. 



