A. E. Verrill — JVorth American Cephalojyods. 233 



end ; the terminal portion forms a short, hollow hood, formed by the 

 infolding- of the margin, and marked by slender, divergent, raised lines, 

 stronger laterally, and with a dorsal keel. The central rib begins at 

 the anterior end, increases in size to the middle region, then narrows 

 to the slender part, where it forms a slender, prominent rib, only visible 

 dorsally, and then becoming confluent with the lateral ribs, extends 

 as a sharp keel to the end. The lateral ribs commence at aboiit -75 

 inch from the anterior end, and each at first consists of three riblets ; 

 farther back another appears on the outside margin but is separated 

 only by a slender groove, and toward the slender part of the pen they 

 all coalesce into a single rib on each side, which nearly meet in the 

 middle line ventrally, where they are separated by a slender groove, 

 which disappears farther on. Total length of pen, 349""" (13-75 inches) ; 

 greatest breadth, 22-5""" (-90 inch); length of posterior cone or hood, 

 •9"'"' {''do inch) ; breadth of posterior expansion, 15 ""\ 



This specimen was collected at Bermuda, by Mr. G. Brown Goode, 

 and now belongs to the Museum of Wesleyan University, Middletown, 

 Conn. Mr. Goode informs me that it was picked up on the north 

 shore of the island, in December, 18 76, and that it was regarded by 

 the inhabitants as a novelty or great rarity, and was noticed as such 

 in the local newspapers. 



Histioteuthis D'Orbigny, 1839. 



Hisiioteuthis Ferussac & D'Orbignj, Histoire naturelle des Cephalopodes Acetabu- 

 liferes, p. 226. 



This genus is remarkable for having the six upper, sessile arms 

 united together nearly to their tips by a thin elastic membrane or web. 

 The ventral arms are also united together for a part of their length 

 and their common web is joined to the great web, in the median line, 

 by a bridle-like membrane. The tentacular-arms are very long, and 

 have expanded clubs, with a broad dorsal keel. As in Architeuthis 

 and Sthenoteuthis, they are furnished with a series of small smooth- 

 rimmed suckers, alternating with tubercles, on the proximal part of 

 the club and adjacent part of the arm, for the purpose of uniting the 

 arms together, at will, but in the following species a I'ow of such 

 suckers and tubercles also extend along one side of the club, opposite 

 part of the large central suckers. The large suckers are serrated, and 

 alternate in two rows ; two rows of large marginal suckers exist on 

 one side and two rows of much smaller ones on the other. At the 

 extreme tip of the arm there is a cluster of small smooth-edged 

 suckers, as in Architeuthis. 



Trans. Conn. Acad., Vol. V. 30 February, 1880. 



