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No described species approaches this except 0. macropus Risso, in 

 which there is a marked distinction in coloring, and in the propor- 

 tional length of arms. 



Octopus pusillus. Corpus parvum, subglobosum : caput seque 

 longum ac latum : oculi magni, protrusi : apertura parva : brachia 

 robusta, contorta, cito attenuata, pro longitudine 1, 2, 3, 4 ; acetabu- 

 lis magnis, confertis ; umbella ampla. Whole length about three 

 inches. Obtained at Mangsi Island, China Sea. In spirits. 



This may be the young of some larger species like O. rugosus, but 

 in its present state it differs essentially. Others may be able to settle 

 the question. 



Octopus mollis. Corpus parvum, elongatum: oculi valde ex- 

 stantes : sipho bulbosus, elongatus : brachia gracilia, basi baud ap- 

 proximata, pro longitudine 4, 3, 2, 1 ; cupulis remotis : tunica (vino 

 conservata) ochracea rufo-punctata, ramuscubs venosis ad dorsum 

 brachiorum notata. Long. 3 poll. Obtained at Tutuilla, Samoa 

 Islands. 



This also may be a young specimen. It is most like 0. Indicus, 

 but is more delicate in all its characters than any species I have seen. 



Sepioteuthis arctipinnis. Corpus elongatum, ovato-lanceola- 

 tum, pinnis perangustis, arcuatis munitum : caput oblongum corpore 

 angustius : brachia sessilia, curta, crassa, pro longitudine 2, 4, 3, 1 : 

 brachia tentacularia seque ac corpore longa, triente extremo dilatato- 

 lanceolato, series 4 acetabulorum gerente ; os magnum, cupuliferum : 

 tunica brunneo-purpurascens rufo-punctata, infra pallidior. 



Ommastrephes insights. Corpus magnum, sub-cylindraceum, 

 postice angulatum : pinna trientem longitudinis corporis superans, 

 rhomboidabs, acutangularis, latior quam longa: sipho pyriformis, 

 arcuatus: caput breve, latum, supra convexum, infra excavatum : 

 oculi parvi : brachia sessilia, robusta, triquetria, subequalia, pro 

 lono-itudine 2, 3, 4, 1, trientem proximum paris inferioris acetabulis 

 privatum vel fimbriatum ; acetabulis parium lateralium majoribus : 

 brachia tentacularia gracilia, vix ad extremitatem dilatata, ad trientes 

 duos extremos acetabulis instructa : color (vino conservata) rufo- 

 cinerea. 



Shell 8£ inches long and about £ inch broad, the posterior two 

 inches, dilated into a paddle-shaped blade. 



Length of body 10 ; of head 2£; of fin 4 ; breadth of body 3 ; of 

 head 2£ ; of fin 6 ; length of longest sessile arm 6£ ; of shortest 4£ ; 

 of tentacular arms 10 inches. 



Obtained at Feejee Islands. Dr. Holmes. 



The only species to which this bears any close relation is 0. todarus 



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