826 REConns of the Australian MrsF.rM. 



PeRONIA CORPHLENTA, <ii>il}<l. 



Feroiiia rorpitlenta, (Jonlil, Wilkes U.S. Expl. E.xped., xii., 1852, Moll., 

 p. 293, pi. xxii., tjc;s. 385, 385a. Id., Ofcia Oonclioloo^iea, 1862, p. 226. 



/ Oncidium peruiii (Cuvier), Plate, Zool. Jalirb., Aiiat., vii., 1894, p. 172. 



Ouchidella rorpiilciifd (Gould), H. & A. Adams, Geii. Rec. Moll., ii., 1858, 

 p. 234. 



iJesrriptioit. — "Auimal elongate oval, somewhat truncated in front,deep 

 Rea green above, olivaceous beneath ; foot pale ; back arched, bearing 

 numerous large, elevated, rounded tubercles, witli smaller intervening 

 ones ; mai-gins undulated ; hood projecting bejond the body, broad as the 

 body ; heart lobed ; lobes circular ; simj)le and deep green above, somewhat 

 violaceous beneath ; mouth quite small, orange ; tentacles linear, rather 

 stout and long, green ; foot two-thirds the length of the body. Length 

 two inches ; breadth one inch ; height \ inch. 



A large species, somewhat irregular in outline." (Lionhi). 



Obs. — This species has been referred to Uurhidiuin pero)tii, Cuvier, in 

 this paper. 



Locality. — Direction Island, Fiji. 



Peronia acinosa, (iould. 



Peroiila acinosa, Gould, Wilkes U.S. Expl. Exped., xii., 1852, Moll., p. 



291, pi. xxi., fig. 384, 384a. Jd., Otia Conchologica, 1862, p. 226. 

 Ouchidella acinosa (Gould), H. & A. Adams, Gen. Rec. Moll., ii., 1858, 



p. 234. 



Description. — "Animal elongated, evei'vwhere closely covered with 

 lai'ge rounded papillae of a deep beryl green colour, sliaded in the inter- 

 stices with amethystine : the same colouring is found below, except the 

 foot, which is a slaty violet, half the width of the body. Body attenuated, 

 apparently somewhat cylindrical, equally and acutely I'ounded at both 

 ends. Tentacles dark blue. 



Length nearly an inch and a half; breadth three fifths of an inch. 



A fhie species having a niulbeiry like surface, and also remarkable 

 for its unusually dark colours, the general colour being of an ameth3'stine 

 blue, somewhat darker than the i-ounded pa{)illrt\ 



Loc((//^?/.— Fiji." (donld). 



Onchidium ferkuoineum, Lesson. 



Onchidium ferrugineiun, Lesson, Voy. "Coquille," Zool., ii., 1830, [). :>()0. 



Id., Gray, Moll. Auim., iv., 1850, p. 117. LI., Semper, Reis. im 



Arch. Phil., iii., Landmoll., v., 1882, p. 268. 

 Peronia ferrui/inea (Lesson), H. & A. Adams, Gen. Rec. Moll., ii., 1858, 



p. 235. 



This Onchidinm is closely related to that of M. de Blainville. It is 

 eighteen lines in length. Its mantle is thick and Heshy, and over Mowing 

 the foot, that is to say its sides are nearly vertical. The upper part is 



