38 THE ROTIFERA. 



DiASCHiZA (?) cuPHA, Gossc (169), (PI. XXXI. fig. 31). 



[SP. CH. Much compressed ; dorsum squarely gibbous; foot short, scarcely 2^''"'^' 

 truding ; toes long, hladc-sliaped, slightly recurved, tvith claws ahruptly shouldered. 



This Imnclibacked form needs fuller examination. I describe it from a single ex- 

 ample, just dead but not decomposed, in water sent from Birmingham. The depth, 

 compared with the width, of the animal is remarkable. The trophi are very long, but 

 ill-defined ; in the occiput is a short brain, carrying a flat, lens-shaped red eye on its 

 inner surface. The peculiar shape of the toes is sho^wi at fig. 31, 6. I affix a mark of 

 doubt to the generic position, because I could not be quite sure of the dorsal cleft. 



Length, Jj inch. Habitat. Birmingham, lacustrine. P.H.G.] 



DiASCHIZA (?) EAMPHIGEEA, GoSSC (169), (PI. XXXI. fig. 32). 



[SP. CH. Lorica elliptical in outline, viewed dor sally ; highly gibbmis, vietued 

 laterally ; venter flat ; toes stout, long, decurved ; tro'phi j^rojecting in form of a bird's 

 beak. 



The front terminates in an acute hooked beak, which is found to be the extremity of 

 the tropin, and apparently of the incus p>rotruded. The whole manducatory apparatus 

 is of unusual dimensions, especially the fulcrum of the incus. (Fig. 32, b, represents 

 the trophi seen dorsally ; c, laterally.) I have not distinctly seen the dorsal cleft ; but 

 the line which passes along the back, at some distance from the edge, I presume to 

 indicate the bottom of such a cleft ; if it is not the base of a high carina. Two examples 

 occurred together in water from one of my window tanks. 



Length, y|j inch. Habitat. Lacustrine. P.H.G.] 



Salpina ventkalis, Ehrenberg (42), (PI. XXXIII. fig. 29). 



SP. CH. Occipital spines tuanting ; pectoral p)air very short ; lumbar spine short, 

 decurved ; alvine pair longer than the lumbar, straight ; the lorica xvith a stippled 

 collar in front. 



This species closely resembles Mr. Gosse's macracantha ; but differs from it in ha\'ing 

 a rather decurved lumbar spine instead of a straight one ; in its alvine spines being 

 proportionally longer ; and in having a stippled collar on its lorica surface, which 

 macracantha lacks. It is (according to Ehr.) considerably smaller. 



Length (of lorica), yj^f inch. Habitat. Near Berlin. 



Salpina bicaeinata, Ehrenberg (42), (PI. XXXIII. fig. 30). 



SP. CH. Lorica smooth, four processes in front, three small ones behind, alvine 

 pair the smaller. 



Very like viucronata, only all the spines are shorter ; and the gaps between the 

 pectoral and alvine are different. The gap between the pectoral pair is nearly straight 

 with a slight central incision, while the corresponding gap in mucronata is very deep. 



Length, ^{^ inch. Habitat. Near Berlin. 



Salpina polyodonta, Schmarda (135), (PI. XXXIII. fig. 28). 



SP. CII. Body s ub- triquetrous ; pectoral spines tivo-pointed ; the middle hind 

 spine blunter than the alvine. Two rows of teeth in each uncus. 



This Salpina has a lorica differing from that of brevispina only in the pectoral 

 spines. As will be seen from the figure, each pectoral projection is double-cornered, 

 unlike any other Salpina. Schmarda credits the animal with two rows of teeth in each 

 imcus ; I think that this must be an error. 



Length. About , J, ,1 inch. Habitat. St. Jago, Chili. 



