48 NATURAL HISTORY OF KERGUELEN ISLAND. 



Mytilus CANALICULUS, Haiiley. 



Mytilus latus, auct. non. Lam. 



Mytilus ungulatus, Rve. Conch. Ic. ii, 4. 



Mus. No. 11 910. 



Chili, Eeeve ; New Zealand, Hanley ; Kerguelen Island, Dr. Kidder, 

 living; abundant. The shell of this species closely resembles some varie- 

 ties of Mytilus edvUs, but the soft parts are quite different. The foot is 

 large and quite flat beneath. The viscera and branchisB are white; the 

 foot and mantle edge streaked with dark brown. 



The following species, not obtained by Dr. Kidder, but described as 

 new, by Mr. Smith, in the paper referred to; and other previously-de- 

 scribed species, which are not enumerated in the paper in the Annals, 

 were found by the Eev. A. E. Eaton, of the English party at Ker- 

 guelen. 



Struthiolaria mirabilis, Smith. 

 Buccinopsis (?) eatoni^ Smith. 

 Trophon albolabraUis, Smith. 

 Littorina setosa, Smith. 

 Rissoa Kergueleni, Smith. 

 Eatoniella subrufescens, Smith, sp. 

 Skenea suhcanalicnlata, Smith. 

 Scissurella suprajMcata, Smith. 

 Solenella glgantea. Smith. 

 Yoldia subcequilateralis, Smith. 



[In addition to the foregoing, the collection contains individuals of an 

 undetermined Doris, found in tide-pools, at low- water. — J. H. K.] 



MOLLUSCOIDA. 



The class Tunicata is numerously represented, both solitary and 

 compound ascidians' being abundant upon rocky beaches and attached 

 to the great masses of kelp (Macrocystis) which fringe the shores of 

 the island. A large solitary ascidian, of dark mahogany color, with 

 tough, leathery envelope, was especially common just below low- water 

 mark. Specimens were found as long as 5 inches. 



Flustra and numerous other forms of Polyzoa grow luxuriantly 

 upon the stems and leaves of sea-weed, presenting often remarkably 



