134 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



Found under a stone whose lower surface was covered with a red 

 Alcyonarian, some Polyzoa and Tuhularia. They seemed to haunt the 

 Polyzoan principally. Found in the same habitat on two occasions." 



The preserved specimens are much contracted, the largest being 

 only 3-5 mm. long, and the external characters described by 

 Mr. Crossland can be verified only with difficulty. The four 

 digitations on the frontal veil still remain in the form of knobs, 

 but in some specimens the outer pair are distinctly grooved, showing 

 that they represent tentacles. The foot is rounded in front The 

 branchiae are reduced to mere lumps : the plumes have perhaps been 

 rubbed ofp. 



In the specimen dissected the formula of the radula is 21 X 

 11. 1.1.1. 11. The teeth are as represented by Bergh (1 c, 

 pi. Ixxiv, fig. 21). The median tooth is distinctly tricuspid; the 

 first lateral less clumsily shaped than usual in the genus, and 

 distinctly hamate, the hook beuding over the side and top of the 

 median tooth. The jaws are as in Bergh's pi. Ixxvi, fig. 3, but bear 

 at least eight rows of denticles on the edge. There are no stomach plates. 



These specimens are remarkable externally for having only 

 four processes (including the tentacles) on the oral veil, a character 

 which is shared by T. lineata and T. mossta, but they approach more 

 nearly to the typical T. mmda because they have a narrow radula and 

 no lines on the dorsal surface. The coloration also approaches that 

 of T. mcesta. According to Vayssiere (I.e., pi. i, fig. 19), the animal 

 is not so much black as yellowish, with a good deal of black down the 

 centre of the back. In the present variety this dark pigment is 

 reduced to a band between the I'hinophores and some spots on the 

 dorsal surface. 



T. mcesta is possibly the same as the Duvaucelia gracilis of Risso 

 (Hist. nat. Europe Merid., vol. iv, pp. 38-9, 1826). 



Staueodoris attpica, n.sp. PI. XIV, Fig. 2. 

 Mr. Crossland's notes on the living animals are as follows : — 

 " Under stones at Porto Praya, lee of Quail Island. Bright light 

 yellow, gills same tint, but perfoliations of rhinophores a little deeper. 

 The rhinophores stand vertically, and only the perfoliated part is 

 shown. Back covered with small warts evenly distributed. Mantle 

 fairly broad, nearly colourless and translucent. Rhinophores and gill 

 pockets not raised. Gills simply pinnate, and peculiarly long and 

 slender (see the coloured sketch), ten ' in number, very sensitive. 

 Under side shows head and foot (latter broad) of a deep yellow, 

 es[)ecially head and anterior edge of foot which is grooved, though 

 there seems to be no notch in the anterior lip of the groove. Back 

 rather broad and rough, showing spicules. Shape flat, but not 

 conspicuously stiff. 



" A smaller specimen from St. Vincent : in this ouly the head of 

 all the under surface is of a deeper yellow." 



Twelve in sketch, but ten here and in nature. — C. E. 



