ÖFVERSIGT AF K. VETENSK.-AKAD. FÖRHANDLINGAR 1896, N:0 8. 607 



part it is hardly a tliird of 1 mm. in breadth. Each side of the 

 conical portion is about 3| mm. The aboral tip is mutilated^ 

 so that I cannot teil what shape it may have had. The general 

 structure of the pen thus resembles the same in Mastig oteuthis 

 agassizii Verrill but Verrill describes the costee as »sublaterab 

 and the margins are said to »unite together ventrally» to form 

 the hollow conical portion which they seem not to have done in 

 our specimen, and if they had done so they would not have needed 

 to be thickened at the edge. The difFerences in structure of the 

 pen and the suckers, and the absence of suckers (except 6 — 8 

 minute ones) on the ventral arms prevent me from referring our 

 specimen to Mastig oteuthis agassizii Verrill, even if the shape 

 and size of the fins compared with that of the body might pos- 

 sibly be explained as juvenile characters which would change 

 with age. I therefore propose to name the new species Mastigo- 

 teuthis lemmana from the peculiar feature of the ventral arms 

 having hardly any suckers. 



When we open the funnel of Ma stig oteuthis levimana we 

 find a well developed funnel organ consisting of two »lateral pads» 

 and a central portion made up of a large cushion with a pro- 

 minent little median wart on its anterior border. This was the 

 appearance of the organ in the fragmentary specimen; in the 

 other it was so strongly swollen and gelatinous, that it nearly 

 filled up the whole cavity of the funnel, and the particular feat- 

 ures could not be discerned. The anterior dorsal lip of the funnel 

 is well developed and bent over the anterior opening. In the 

 pallial cavity we find the rectum with its two appendages near 

 the base of the funnel. The ink-bag is rather large. Laterally^ 

 from its aboral end, there are two very large renal papillse, This 

 is very interesting as this characteristic was for a long time re- 

 garded as belonging only to the Myopsids but has since been dis- 

 covered in Thysanoteuthis (ViGELius), Histioteuthis and Chiro- 

 teuthis (Weiss). 



At the base of the eyes between the same and the funnel 

 on each side there is an olfactory organ situated, It forms a 



