382 



A. E. Verrill — North American Cephalopoda. 



Measurements in millimeters. 



Total length 



End of body to center of eye 



Breadth of body 



Breadth across eyes 



Length of dorsal arms, from mouth 



Length of second pair of arms 



Length of third pair of arms 



Length of hectocotjdized arm 



Length of modified tip 



Length of ventral arms _. 



Greatest breadth of lateral arms 



Diameter of largest suckers 



Family CIRRHOTEUTHID^ Keff. 



Kefferstein, in Bronn, Thier-Reich, iii, p. 1448, 1866. 



Body somewhat elongated, furnished witli a short, thick tapering 

 fin on each side, supported by an internal transverse cartilage. Man- 

 tle extensively united to the head. No connective cartilages. Arms 

 united together nearly to the tips by a broad umbrella-shaped mem- 

 brane or web. Suckers in a single row, alternating with slender cirri. 

 Stauroteuthis Verriii. 



Verrill, American Journal of Science, vol. xviii, p. 468, Dec, 1879. 

 Allied to Cirrhoteuthis, but with the mantle united to the head all 

 around, and to the dorsal side of the slender siphon, which it sur- 

 rounds like a close collar, leaving only a very narrow opening around 

 the base of the siphon, laterally and ventrally. Fins long-triangular, 

 in advance of the middle of the body. Dorsal cartilage forming a 

 median angle, directed backward. Body flattened, soft, bordered by 

 a membrane. Eyes covered by the integument. Web not reaching 

 the tips of the arms, the edge concave in the intervals. Suckers in 

 one row, with a pair of slender cirri alternating with them along most 

 of the arm. Cirri absent between the basal and terminal suckers. 

 Stauroteuthis syrtensis Yerriii. 



Amer, .Tour. Sci., vol. .xviii, p. 468, Dec, 1879; xix, p. 294, pi. xvi, Apr., 1880. 



Plate XXXll, figures 1-5. 

 Female: Head broad, depressed, not very distinct from the body. 

 Eyes large. Body elongated, flattened, soft or gelatinous, widest in 



