A. E. Verrill — North American Cephalopods. 405 



but the broad base is oblique, and the outer border is sloping, with- 

 out a prominent angle. 



The pedicels of the larger suckers on the tentacular club are very 

 peculiar. They are, when extended, long and remarkably stout, 

 their diameter being more than half that of the sucker. They are 

 cylindrical, and are capable of being invaginated, toward the sum- 

 mit, so that they can be lengthened out or A^ery much shortened by a 

 sort of telescopic motion. The upper end is thick, and fits the basal 

 part of the broad sucker like a piston. (PI. LV, figs. 6, Qa.) 



Two additional examples of this interesting species have been re- 

 ceived. They are not in so good condition as the one originally 

 described. The head and arms alone remain, but these are well 

 enough preserved to show the characteristic color-marks. The first 

 is considerably smaller than the specimen taken by Capt. Collins, 

 It was taken fi'om a cod, on the western part of the Grand Bank, 

 N. F., by Capt, Johnson and crew, of the schooner ''Augusta John- 

 son," (lot 962). Presented to the U, S. Fish Commission, June, 1881. 

 The last specimen was taken in 180 fathoms, near the N. E. part of 

 George's J^ank, and presented to the U. S. Fish Commission by 

 Capt. Chas, Anderson and crew, of the schooner "Alice G. VVonson," 

 October, 1881, (lot 980). 



Brachioteuthis, gen. nov. 



Allied to ChirotentJiis. Uififers in having the lateral connective 

 cartilages of the siphon simple, long-ovate, and the corresponding 

 cartilages of the mantle in the form of simple, linear ridges ; a rhom- 

 bic caudal fin ; pen with a simple, linear, anterior portion, suddenlv 

 expanding into a much broader, lanceolate, posterior portion, which 

 is naturally infolded ; arms slender, the ventral ones not distinctly 

 obliquely compressed ; tentacular club without a spoon-like cavity at 

 tip. 



The siphon has a valve and dorsal bridle as in Chirotevthis, and 

 the suckers, so far as preserved, are similar, but those of the club are 

 more numerous, and their pedicels apparently had a less prominent 

 bulb below the sucker. 



In addition to the following new type-species, this genus probably 

 includes the Chiroteuthis Bonplandii Verany, from the eastern At- 

 lantic. 



B. Bonplandii, as figured, has a very similar pen, but the shape 

 of the caudal fin is different, and the arms are more nearly equal in 

 length. The arms are also represented as having small swellings at 

 the tips. Its tentacular arms are not known. 



