"TERRA XOVA" EXPEDITION. 



Tliis seems to have somewhat longer anus, witli the dark and light coloration, 

 between their dorsal and ventral surface, less marked than usual, and a louger 

 umbrella, especially between the dorsal arms, than is customary in typical examples. 

 On the whole, however, the assemblage of characters, particularly the very minute 

 hcctocutylus, point to its 1 icing this widely distributed species. The radula and 

 mandibles are figured (Figs. 5, G). 



Via. G. Polypus riiijosiift, 



mandibles, X '2. 



Fin. 5. Poli/pus ruijosus, radula, x GO. 



Dimensions in Millimetres. 



End of body to mantle-margin ......... 30 



End of body to eye ........... 37 



Breadth of body ........... 27 



Breadth of head ........... 25 



Web between ventral arms ......... 18 



Web between dorsal arms ......... 20 



Web between left lateral arms ......... 26 



Web between right lateral arms ..... 20 



1st right arm ........... 90 



2nd right arm ... .122 



3rd right arm .... ...... 96 



4th right arm ....... ... 96 



1st left arm . . . ....... 93 



2nd left arm . ... . . ... 110 



3rd left arm . .... . . 119 



4th left arm ...... ..... 89 



Hectocotylus ..... . . 1 



Diameter of largest sucker . . . . . . . . . 3 50 



Africa, west and south ; Peru : Indo-Malayan region ; Japan ; 

 Australia. 



4. Polf/pus Occident <ili* (Steeustrup, MS., Hoyle). Figs. 7, 8. 



Ortnpns oceidentalis, Steenstrup, MS. in Mus. Havn. 



O/'tujius vulgar!*, var. tniu'rii-uinix, d'Orbigny, Moll. Cuba, p. M, pi. 1, Paris, 1853. 

 Octopus oceidentalis, Hoyle, "Challenger" Cephalopoda, XVI, pp. 77-78, 1886. 

 Poll/pus oci-IJi'itiiilix, Hoyle, Bull. Mus. Comp. Zool., XLIII, p. 1 1, 1904. 



Station :!('., (South Trinidad Island, shore between tide-marks. July _!(>th, 1910. 

 One ?. 



The dorsal surface of this is much paler (a smoky grey on a light ground) than 

 that of the female in the British Museum, taken by the " (Challenger " Expedition at 



