562 GASTROPODA. [Opitsthobranchia. 



formed of 8 triphmate members, of which the hindermost are slightly 

 smaller. The anal papilla is nearly in the centre of the branchial 

 crown. The mantle-edge is of nearly the same breadth throughout ; 

 its under-surface smooth. The foot is rounded in front, with well- 

 defined marginal groove ; the margin is not very narrow ; the tail 

 short. Colour of living animal a fine violet, with orange-coloured ten- 

 tacles and foot. Preserved animals are yellowish-white. The living 

 animal attains a length of over 150mm., and a breadth of 60mm. 

 The dimensions of a preserved specimen are : length. 40 mm. ; breadth, 

 25 mm. ; height, 17 mm. 



The internal organs have been described by Bergh. 



Co-type in the Otago Museum, Dunedin. 



Hab. -Between Otago Peninsula and Oamaru, in 30 to 40 fathoms, 

 obtained in numbers by trawling ; Wellington Harbour (A. Haylock). 



Remarks. From its coloration, this form probably represents a 

 new species ; possibly it is identical with one or other of the species 

 recently described from the Pacific Ocean (Bergh). Perhaps identical 

 with an East African form (Eliot). 



3. Doris wellingtonensis, Abraham, 1877. Plate 36, fig. 3. 



Doris wellingtonensis, Abrah., P.Z.S., 1877, 211, 259, pi. 29, f. 27 : M.N.Z.M., 

 127 : Eliot, P. Mai. S., vi, 1905, 236 ; vii, 328, 335. Onchidoris tubercu- 

 latus, Cuvier, C.M.M., 54 ; not of Cuvier. Doriopsis lacera, Cuvier : 

 Bergh, Chall. Rep., x, 121 ; not of Cuvier. 



Body oval, convex, swollen. Mantle thick, fleshy, not extended or 

 flattened at the border ; covered with large rounded flat pustules, 

 between which are scattered small opaque whitish tubercular spots ; 

 the upper surface harder than the under, with an almost scaly feeling. 

 Rhinophores small, clavate, compressed from before backwards, each 

 with more than 26 small laminse, lying between shallow longitudinal 

 depressions, and extending low down ; the apices are styliform, and 

 marked with laminae, except at the extreme rounded tip ; they are 

 retractile through large wide fleshy sheaths. Branchice 7, tripinnate, 

 sometimes quadripinnate, relatively small, but much ramified ; the 

 anal papilla is subcentral ; the whole system is retractile within a large 

 deep cavity, the margin of which is crenulate and wavy, and can 

 be contracted completely over them. Oral tentacles short, thick, 

 tubercular, truncated, and with a central pit on the apex, which, 

 however, is most likely due to distortion by the preserving fluid. Foot 

 oblong, broad, fleshy, flatly rounded, and with an anterior groove ; 

 posteriorly it is obtusely acuminated. Colour of the living animal 

 dirty yellowish-orange on the back ; branchiae paler ; foot and rhino- 

 phores bright orange. 



Length, 42 mm. ; breadth, 30 mm. (type). Length, 137 mm. ; 

 breadth, 84-5 mm. ; height, 42-5 mm. (large specimen). 



Radula consisting of 30 to 50 rows of teeth ; there is no rhachidian 

 tooth, as erroneously stated by Hutton. On either side of the rhachis 



