278 



NOTES on the CEPHALOPODA Collected by the 

 L. M. B. C. during the Summer of 1885.* 



By W. E. Hoyle, M.A., M.R.C.S., F.R.S,E., 



NATURALIST TO THE "CHALLENGER" EXPEDITION COMMISSION, EDINBURGH. 



Eledone cirrosa (Lamarck), d'Orbigny. 



177(5. Sepia octopodia (?), Pennant, Brit. ZooL, vol. iv., p. 58, 



pi. xxviii, fig. 44. 

 1799. Octopus cirrhosus, Lmk., Mem. Soc. Hist. Nat. Paris. 



t.i, p. 21,pl. i,fig. 2. 

 1853. Eledone cirrhosus, Forbes and Hanley, Brit. Moll., 



vol. iv, p. 211, pi. KKK, fig. 4 ; pi. mmm, fig. 1. 

 1869. Eledone cirrosa, Jeffreys, Brit. Conch., vol. v, p. 146, 



pi. vii, fig. 2. 



Two specimens (both females) were placed in my hands 

 for examination, one labelled ** Hilbre Island, low water, 

 1885," the other " Hyaena, May 24, 1885." 



This species is the commonest Octopod of the northern 

 British shores, and, indeed, of those of the north-west of 

 Europe generally. The males are distinguished by having 

 the third or ventro-lateral arm of the right side modified into 

 a spoon-shaped copulatory organ. The males should be care- 

 fully looked for in future expeditions, because Steenstrupf 

 has described a peculiar modification of the tips of the other 

 arms, which it is very important should be confirmed, 

 because his specimen was not in good condition. The 

 suckers cease a few millimeters from the extremity, and each 

 is replaced by a pair of minute cirri. 



* For the complete record of the Cephalopoda see Report on the 

 MoUusca, p. 245.— Ed. 



t K. dansk. Vidensk. Selsk. Skriv., Rk. iv, Bd. iv, p. 206, Tav. ii, fig. 6 : 

 for translation, see Ann. Mag. Nat. I^ist., series 2, vol. xx, p. 102. 



