702 LÖNNBERG, TWO CEPHALOPODS FROM TENERIFFE. 



the sixth lies close behind the fifth and is lateraily attachedl 

 to the same; the seventh, eighth and ninth are more lateral 

 and oblique and situated as the figure shows. The siphonal 

 valve is broad and large, the funnel organ well developed, show- 

 ing large lateral cushions and anteriorly confluent central ones. 

 The head is not so broad as the body. The eyes are very 

 large. The arms are unequal, the order of length being very 

 decidedly 4, 3, 2, 1, in which respect this species difFers from 

 other Omraatostrephes. The longest pair of arms (the fourth) 

 measures 57 % of the pallial length. The dorsal arms are bi- 

 carinate on the distal surface, the others unicarinate. The keeis- 

 of the third pair are the largest. The arms of the second and 

 third pair carry on their inner and ventral margin a web sus- 



pended between processes from the peduncles of the cups of the- 

 nearest (inferior) series. This web is broadest on the third pair 

 Avhere its greatest width is about 8 mm., on the second only 5. 

 At the lateral margin of the dorsal arms, on the upper side of 

 the second and third pair of arms, and on both sides of the 

 ventral arms there is a similar web in the same position and 

 of the same structure, although quite narrow. The brachial cups 

 are pedunculate, arranged in two series on each of the arms, but 

 as the inner surface of the arms is narrow and the cups of the 

 two series alternate, and at the same time are directed towards 

 the middle of the arm, it sometimes looks as if there was only 

 one row of suckers on the nroximal half of the arms. But that 



