102 BULLETIN OF THE 



Length of ventral arms 



Length of tentacular arms 



Breadth of dorsal arms, at base 



Breadth of ventral arms 



Breadth of tentacular arms 



Diameter of eye 



Length of pen 



Breadth of pen anteriorly 



Breadth of pen posteriorly 



Depth of pen posteriorly 



SPECIMENS EXAMINED. 



No. Stat. Locality. 



24 325, N. Lat. 33° 35' 20", W. Long. 76° . . 



25 328, N. Lat. 34° 28' 25", W. Long. 75° 22' 50" 



Chiroteuthis Bonplandi D'Orb. (?) 



Loligopsis Bonplandi Veraxy, Acad. Turin, Ser. II. Vol. I. PI. V. (specimen with- 

 out tentacular arms, t. D'Orb. ). 



Chiroteuthis Bonplandi D'Okbigny, Cephal. Acetab., p. 226 (description compiled 

 from Verany). 



Plate III. Figs. 1 - 1*. 



A detached tentacular arm, belonging to a species of Chiroteuthis, was taken 

 at station 303, Lat 41° 34' 30", Long. 65° 54' 30", in 306 fathoms. 



This arm is very long and slender ; the length being 780 mm. (or over 30 

 inches) ; its diameter being from 1.5 to 2 mm., except near the base, where it 

 is 3 mm., and at the terminal chib, which is 6 mm. broad and 54 mm. long. 

 The arm is white, with purplish specks, and is generally roundish, except at 

 the club ; along the greater part of its length there is a row of rather distant 

 sessile suckers, the distance between them being usually from 12 to 18 mm. ; 

 these suckers are larger than those of the club, and have a nearly flat upper 

 surface and no horny marginal rim. A row of small, simple, scattered pits, 

 perhaps homologues of these suckers, extends up the back side of the club. 

 These smooth suckers evidently serve to unite the tentacular arms together, 

 when used in concert. The club is stouter than the rest of the arm, convex 

 on both sides, and but little flattened ; on each side it is bordered by a well- 

 developed marginal membrane, supported by a series of transverse thickened, 

 but flat, tapering muscular processes, with their ends projecting at the edge 

 of the membrane, as digitations ; on the distal half of the club these are sepa- 

 rated by spaces greater than their breadth, but on the proximal portion they 

 become forked and crowded close together, showing only narrow intervals or 

 merely a groove between them. At the tip of tJie arm there is a thick, ovate, 

 dark purple, spoon-shaped, hollow organ, about 4 mm. long, with its opening on 

 the back side of the ann. This so strongly resembles the spoon-shaped organ of 



