collected hy the Fishery Cruise^' ' Gokheeher.'' 449 



In a large female of P. arcticus, measuring in overall 

 length 17 cm., tlie breadth of the mantle was 5'5 cm., of the 

 head 41 cm., while the longest arm was only 12*5 cm. in 

 length (Verrill, Rep. U.S. Comm. Fish, for 1879 (1882), 

 p. o95, pi. xli. figs. 1, 2, 3 a, pi. xlii. figs. 1-5). In a large 

 male (16'3 cm. overall) the hectocotjlised arm was 8'5 cm., 

 the hectocotylisation 3*3 cm. long. 



With the North Atlantic species, P. ergasticus (Fischer), 

 P. sponsalis (Fischer), and P. profandicola, Massy, this 

 species shows no points of special similarity. 



One large female and two smaller males were taken by the 

 'Goldseeker' on Aug. 24th, 1908, in 1030 m. at Sta. 19 a 

 (Faeroe Channel), associated with half a dozen specimens of 

 P. piscatorum (Verrill). 



Brachioteuthis howmani, sp. n. 



The body is fusiform and runs out into a sharp point 

 behind. The anterior border of the mantle is free all round, 

 almost straight or slightly convex above, not produced in an 

 obtuse angle. At the sides, just above the level of the lower 

 border of the eye, the mantle-border projects slightly, the 

 mantle-cartilage, which articulates with the funnel, running to 

 the end of this projection. 



The pen is clear brown in colour and is plainly visible 

 along the mid-dorsal line, where it is 1 mm. broad. At the 

 insertion of the fin it broadens out and the margins become 

 folded down ; near the tip the margins fuse to form a hollow 

 cone, 11 mm. in length and 2 mm. in breadth at tlie base. 



The fin resembles in shape that of mmatostrephes sagitta- 

 txis. It occupies the posterior tliird of the mantle. 



The funnel is rather broad and is free only at the tip. 

 The hinder margin is thin and shows a shallow sinus. The 

 connective cartilage exhibits a longitudinal groove, 7 mm. in 

 length, slightly enlarged at the posterior end. The connective 

 on the mantle is a linear ridge, 10 mm. in length. 



There is a pair of long and broad adductor muscles. 



The sides of the funnel run up as broad bands to the mid- 

 dorsal line, where they fuse with the neck. At the line of 

 fusion there is a longitudinal horny piece with two lateral 

 grooves like those of the connective cartilage on the funnel. 

 This piece is 6'5 mm. long and lies directly below the front 

 end of the pen, whose incurved margins articulate with the 

 grooves. 



The head is very large, with enormous eyes. It is broader 

 than the mantle-opening. 



Ann. & Mag. N. Hist. Ser. 8. Vol. iii. 31 



