168 



ON ANE1TEA GRAEFFEI AND 1TE ALLIES. 



Genus Aneitea, Gray, 1860. 



Synonym: Triboniophorus, Humbert, 1863. 



Mantle comparatively large, no visible mucous pore. 



Animal exceeding two inches in length. 



A. macdonaldi, Gray, 1860. 



Body yellowish, marbled with black or brown. 



A. graeffei, Humbert, 1863. 



Synonyms, schuttei, Keferstein, 1865 ; kieffti, Keferstein, 

 1865. 



Body pale yellow, with red border to the mantle and foot. 



A. (?) Sp., Gray, I860. 



Alcoholic specimens in the British Museum from New 

 Caledonia. 



A. graeffei, though probably very common, has not been 

 reported from many localities. I have found it in the Port Curtis 

 district and near Brisbane. Bergh's specimen came from the 

 Huntei River ; Humbert's from Woollongong, and Keferstein's 

 from Sydney. Dr. Cox, in his list of the Sydney mollusca, pub- 

 lished in the Handbook of the Australian Association, gives 

 Elizabeth Bay, Port Hacking, and the Currajong as the exact 

 ocalities. 



The total length of a fine specimen of our Brisbane Aneitea 

 is 136 mm. The proportion of the different parts to the length 

 are, height and breadth, one-sixth; length of shield, one quarter; 

 breadth of shield, one-twelfth ; length of facial area, one sixth ; 

 length of tentacles, one twentieth ; width between tentacles, one 

 twentieth ; pulmonary orifice, one third the distance from th»e 

 median line to the margin of the foot. ' The shape of Aneitea is 

 difficult to describe. Of such a protean form is it, that every 

 posture it adopts varies its length, breadth and outline. When 

 the observer wishes to view it in motion, it will probably turn 

 sulky, contract and assume the position I have endeavoured to 

 represent in the accompanying plate. The outline is then heart- 

 shaped, the foot projecting in two lobes beyond the contracted 

 facial area. The back is then much arched. The tentacles are 

 either withdrawn, when they disappear entirely, or shyly and 



