194 THE VOYAGE OF H.M.S. CHALLENGER. 



" 16th June, 1874. — Among the surface gatherings there is a transparent and very 

 interesting Pteropod, with large eyes on the tentacles and without any ' ptera ' or foot. 

 Having obtained three more or less damaged specimens from which I could not complete 

 its anatomy, I shall have to defer giving a proper account of it. The animal belongs to 

 the Clionidse, and is probably allied to Pelagia, Quoy and Gaimard." 



Fig. 9. — Taonius suhmi (Lankester). 



A. a living specimen, drawn by v. Willemoes-Suhm, magnified about 25 diameters, a, a, tentacles ; b, six of the sessile 

 arms, each bearing one sucker ; c, the neck ; d, d, the pedunculate eyes ; /, the siphon ; g, the ink-bag ; k, the posterior 

 extremity of the body, much more elongated in the adults of this genus ; I, the lins ; m, the buccal apparatus ; n, the 

 oto-cysts ; o, the intestine. B. One of the tentacular suckers, more highly magnified. 0. A portion of the radula, 

 more highly magnified. 



On a piece of paper attached to the drawing are the following particulars regarding 

 the structure of the animal. 



" Clionid Pteropod : June 16th — 18th, 1874. In the warm East Australian current 

 coming from the north (surface temperature 18° C), together with CalcarcUa on the 



