216 " ENDEAVOUR " SCIENTIFIC RESULTS. 



suckers on the tentacle larger than the rest, and on the sessile 

 arms the two inner series of suckers are larger than the 

 outer," but it is evident that he is here only quoting from 

 the older French authors. 



Once more turning to Figs. 58-59, it will appear that the 

 sepiostaire of the " Endeavour " species fails to agree even 

 reasonably well with either d'Orbigny's figure of S. australis, 

 Q. and G., Hoyle's illustration of S. capensis, of Chapman's 

 figures called »S'. capensis (1912, pi. 1), which last are not given 

 to great detail and may not belong to any of the foi*ms under 

 discussion. To sum up, the impression which one gains 

 from such a survey of the literature as I have outlined is that 

 probably the true *S'. australis, Quoy and Gaimard (and 

 hence inevitably the S. capensis, d'Orbigny) is unknown in 

 the Australian fauna as it has so far been elucidated ; that 

 S. capensis, Gray 1849, in part, and Hoyle 1886, represents 

 another form, possibly undescribed ; and that, therefore, 

 none of these names are properly applicable to the present 

 species. 



The specific name chirotrema is derived from the Greek 

 xe'if (hand) and Tpij/ufi (perforation), having reference to the 

 three large apertures in the dorsal membrane of the tentacle 

 club, a feature unique so far as my own investigations have 

 led me to inquire. 



Suborder OCTOPODA. 



Family POLYPODID^. 



Genus Polypus, Schneider, 1784. 



Polypus, cf. australis {Hoyle, 1885). 



(Plate Ixxviii., figs. 1-2 ; plate Ixxxi., fig. 1). 



1885. Octopus australis, Hoyle — Ann. Mag. Nat. Hist, (5), 

 V. 15, p. 224. 



1885a. Octopus australis, Hoyle — Proc. Roy. Soc. Edinb., 

 V. 13, p. 98. 



1886. Octopus australis, Hoyle — Ceph. " Challenger " Exp., 

 p. 9, 88, 203, 219, 226, pi. 3, figs. 4-5. 



1892. Octopus Australis, Brazier — Cat. Ceph. Austr., p. 5. 



1 1916a. Polypus australis, Massy — Ceph. " Terra Nova " 

 Exp., p. 142, 149, text figs. 9-10. 



