286 Mr. H. J. Carter on a new Species of 



Fiissen), and here and there still higher — Spitzingsee, 

 Seealpsee, Campfer (1793 metres). 



Among the Protozoa Geratium Mrundmella is widely and 

 very generally distributed up to 1993 metres (Palii), Peri- 

 dinium up to 2222 (Nero). Species of the genus Dinohryon 

 (especially D. divergens) exist in very many lakes up to an 

 elevation of 1740 metres (Upper Arosa lake). From still 

 more elevated lakes within a limited geographical region we 

 have to note a variety, alpinum, of D. sertidaria ([Posciiiavo, 

 962], Viola, Nero, Bianco, Crocetta, and Tempesta, 2500 

 metres), colonies of wiiich were captured in the above-men- 

 tioned lakes, sometimes in considerable numbers. 



Finally, we have to note among the Copepoda the remark- 

 able occurrence of Heteroco'pe robusta in the lakes Marsch, 

 Nair, and Furtschellas (2680 metres), all three in the Upper 

 Engadine. 



XXXV. — Description of Chondrosia spurca, n. sp.^ from 

 the South Coast of Australia. By H. J. Carter, F.R.S. 

 &c. 



Chondrosia spurca^ n. sp. 



Specimen massive, irregularly cuboidal and nodular ; 

 broadly sessile where it appears to have been cut off by the 

 dredge; nodules or round projecting parts of the surface 

 covered with a smooth skin, followed inwardly by more or 

 less fleshy substance, which, on becoming attenuated, traverses 

 in all directions a mass of coarse detritus composed of frag- 

 ments of shells, corals, gravel, sand, &c., that give it general 

 solidity. Texture fleshy and homogeneous where devoid of 

 foreign bodies ; gritty in the rest of its composition. Colour 

 yellowish drab. Surface sleek, smooth, slippery, uneven, 

 more or less puckered in growth here and there ; apparently 

 without any opening at all in some parts, poriferous in others, 

 pierced by vents here and there. Pores in tracts here and 

 there, simple, or in the interstices of a well-pronounced fibro- 

 reticulation. Vents of different sizes, on a level with the 

 surface, scattered irregularly more or less in groups. Struc- 

 ture, commencing from without inwards, consisting of fine 

 fibrinous tissue, so homogeneous in appearance throughout as 

 to present no distinction in colour or composition between the 

 surface and the interior beyond increasing compactness, which 



