700 LÖNNBERG, TWO CEPHALOPODS FROM TENERIFFE. 



Length of second arm 25 mm. 



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It has been said that the shape of tlie sheli of tliis species, 

 bears a certain resemblance to that of Sepia bertheloti; in 

 other respects these two forms have nothing at all in common, 

 the latter being miich more elongate, subcylindrical, smooth, 

 and provided with very narrow fins comniencing at the anterior 

 mantle margin, etc. Sepia Iderredda Rang, on the other hand, 

 is stouter, has a mach broader shell, the fins commencing from 

 the mantle margin, etc. With Sepia vulgaris Linn^üS our 

 species has no similarity, and no other forms besides these 

 are as yet recorded from the West-African region. It is 

 equally impossible to find any identical species among the Sepias 

 from the Lusitanian and Mediterranean region. From the South- 

 African region a warty Sepia is described, viz. S. tuberculata 

 Lamarck, but this animal belongs to qiiite another group of 

 Sepias as the completely diflferent shell, the arrangement of the 

 brachial cups etc. plainly indicate. The other foiir species from 

 this region are smooth, and do not agree with S. verrucosa in 

 other respects. 



More similar to Sepia verrucosa than any hitherto men- 

 tioned species is 5. singaporensio PFEFFER, which it resembles a 

 good deal in shape and size. Sepia verrucosa, however, is pro- 

 vided with somewhat broader fins that extend further backAvards; 

 it has only five rows of suckers on the tentacular club (instead 

 of 6), but 6 or 7 enlarged cups in the middle series (instead of 

 5); the brachial and tentacular cups are not denticulated in our 

 species as in S. singaporensis, which latter has also a somewhat 

 shorter and broader shell. There are some small difl:erences besides, 

 but the most important of them are that of the armature of the 

 cups in the two species and that of the geographica! distribution; 

 the latter all the more so, as no similar form is found in the 



