ROTATORIA 



173 



Anuraca aculcata var. cochlcaris Voigt is, according tu Carlin-Nilsson (1934), identical 

 with K. paludosa (Lucks). 



Two forms recently described by Athanassopoulos (1930) as Anuraca aculcata var. 

 graeca and var. conica, both appear to belong to the genus Brachionus, in the figures of both 

 forms what appears to be a foot-shield is indicated; the former is apparently B. capsuliflonis 

 i. quadridcntatiis Hermann, the latter bears some resemblance to B. sataniciis Rousselet. 



FiGUUE 5.— Map of the world showing the distribution of Lccanc f^apiiaua (Murray) in relation to tlie mean 



annual isotherms for 15° C. 



In Table II measurements of specimens of the two species under discussion, from vari- 

 ous localities in India, Tibet and in South Africa are given. 



4. Lecane papuana (Murray). This species was originally described from New 

 Guinea. Harring and Myers ( 1926) record it from Panama, Guatemala and Polk County, 

 Florida, and Ahlstrom (Myers in litt.) has also taken it at Miami in Florida. Tarnogradsky 

 (1930) reports the species from the North Caucasus and Wiszniewski (1931) from near 

 \'alencia, Spain. Hutchinson, Pickford and Schuurman (1932) met with it rather fre- 

 quently in a number of locahties in the Transvaal. In the present collection it occurred at 

 Sohawa in the Punjab. If these records are plotted on a map of the world (Figure 5) on 

 which the mean annual isotherms for 15"C. are drawn, it is seen that they fall on or within 

 these isotherms, while the countries whose rotatorian fauna is best known lie for the most 

 part outside them. There can be little doubt, therefore, that the present species is a sub- 

 tropicopolitan form, providing what appears to be the most conspicuous case of such a 

 distribution yet recorded among the Rotatoria. 



