HOYLE: REPORTS ON THE CEPHALOPODA. 31 



SEPIOTEUTHIS. 

 Sepioteuthis Blainville, '24. 



28. Sepioteuthis lunulata. 



Sepioteuthis lunulata Quoy & Gaimard, '32, p. 74, Plate 3, Figs. 8-13. 

 Sepioteuthis lunulata Ferus.sac & d'Orbigny, '35, p. 300, Sepioteutlies, Plate 3, Fig. 1, 

 Plate 6, Figs. 1-8 [1839], 



Habitat. — Jaluit, Marshall Islands ; January 13, 1900 ; shore ; six specimeiis, 

 3cJ, 39. [H. lOi-109.] 



These specimens present resemblances boUi to S. lunulata and S. mauritiana. 

 The former of these presents in the figures given by Quoy & Gaimard a series 

 of dark circular spots on each fin, and in three of the specimens taken by the 

 " Albatross " similar spots, though not so regular either in form or distribu- 

 tion, are found. On the other three they cannot be made out. The six speci- 

 mens, nevertheless, seem to me all referable to one species, and. I can only 

 conclude that this must vary a good deal in the matter of coloration, as indeed 

 is expressly stated by Quoy & Gaimard ; for in the case of S. guineensis, which 

 is regarded, and no doubt rightly, by d'Orbigny, as being the same species, the 

 spots were not noticed until after it had been preserved. 



Turning to other characters, the horny rings of the suckers in the arms and 

 tentacles resemble very clearly the figures given by d'Orbigny of S. lunulata, 

 though the teeth are rather fewer than in that species and much less numerous 

 than in .S'. mauritiana. On the other hand as regards the fin, the breadth is 

 17 per cent of the length in iS. lunulata, 15 per cent in S. mauritiana, and 12.5 

 per cent in the " Albatross " examples. 



To sum up, then, in the suckers the present form resembles S. lunulata, in 

 the fin it is more like S. mauritiana, whilst in the coloration half the speci- 

 mens show a very distinct likeness to S. lunulata, whilst the others might be 

 S. mauritiana. On the whole I have tliought it best to refer these examples 

 with some doubt to S. lunulata. It is, however, possible that S. lunulata and 

 S. mauritiana may be only varieties of one widely distributed species. 



The tip of the tentacle shows the little spoon-shaped group of suckers to 

 which attention was first called by Goodrich ('96. p. 0). 



Family OMMASTEErillDAE. 



Ommastrephini Steenstrup, '61, p. 1. 

 Ommastrephidae Gill, '71, p. 1. 



OMMASTREPHES. 



29. Omniastrephes sp. ? 



Habitat. — Station 14, north of the Martpiesas Islands ; September 7, 1S90 ; 

 lat. 6° 41' N., long. 137° W., 150 fathoms to surface ; temperature, surface, 82° ; 

 three specimens. [H. 133, 141, 142.] 



