Mr. A. Adams on the Animal of Turbo Sarmaticus. 41 



Fig. 16. Ovules of Euglena viridis (2 to 2*5-5600ths of an inch long), pre- 

 senting the " granule" on their circumference, like those of Spon- 

 gilla. (See 'Annals,' vol. xviii. pi. 6. fig. 39, &c.) 



Fig. 17. Ditto in supposed process of development, presenting a spiral 

 line : a, view of flat surface ; &, half- view of ditto ; c, marginal 

 view, showing the projection of the ovule in the direction of the 

 axis of the spire. 



Fig. 18. Young colourless specimens of Euglena (2 to 3-5600ths of an inch 

 in diameter, which made their appearance in the watch-glass 

 wherein the ovules oi E. viridis had been placed for development. 



Fig. 19. Euglypha pleurostoma, H. J. C. {nov. sp. ?), -^^th of an inch long : 

 a', mouth with projection of tentaculiform prolongations of the 

 body ; b', body ; c', vesiculse or contracting vesicles ; d', nucleus. 

 a, lateral view of ditto ; b, ditto partly filled with ovules ; c, early 

 state of ovule, 2 V?T(yth inch in diameter ; d, subsequent or granu- 

 liferous stage of development of ditto ; e, development similar to 

 that described and figured in Euglypha alveolata, in which there 

 appears to be a secondary test developed round a capsule con- 

 taining granules (see Annals, vol. xviii. pi. 6. figs. 32, 33) ; 

 /, empty test containing supernumerary scales ; g, ditto, covered 

 with scales in situ (scale -g^VTyth inch in diameter) ; h, form and 

 arrangement of the scales ; i, lateral view of figure e, but with 

 secondary test more elliptical. 



V. — Notice of the Animal o/" Turbo Sarmaticus and other Mollusca 

 from the Cape, By Arthur Adams, E.L.S. &c. 



To the Editors of the Annals of Natural History. 



Cape of Good Hope, April 11, 1857- 

 Gentlemen, 



Dr. Gray having formed a genus out of the Turbo Sarma- 

 ticus, on account chiefly of its singular operculum, I was parti- 

 cularly anxious to observe the animal. Making a little excursion 

 therefore to Millar's Point, a wild and rocky spot, I succeeded, 

 after long search, in discovering the haunts of the animal. At 

 low-water, and in fissures in the far-out rocks abounding with 

 green sea-weed, and adhering to the sides of the granite masses 

 where the sea breaks, the Turho Sarmaticus may be found. It 

 is timid, slow-moving, and difficult to observe. The colour is 

 green, spotted and marbled with white, and finely reticulate with 

 dark green. The margin of the mantle is thickened, and just 

 within the edge a dark-green band reposes on the dark-coloured 

 zone on the inside of the outer lip. The rachis of the lingual 

 membrane (a specimen of which I have submitted to the ex- 

 amination of Dr. Gray) has a series of five nearly equal, square 

 teeth, outside of which is a quadridentate, lateral tooth flanked 

 by numerous slender uncini. The upper jaw, composed of two 

 long, cartilaginous pieces, is protected at the tip by a horny 



