146 ME. G. H. WAILES ON FRESHWATER EHIZOPODA 



EuGLYPHA BEACHiATA, Leidy (31). (PL 12. figs. 28 & 30.) 

 Leidy, pi. 37. figs, b, 6, 8-10 (30). 



This species has from two to six tapering spines arising from scales in one 

 or more of the first three rows of scales adjoining the aperture ; rarely, a 

 second series is also present (vide Leidy, pi. 37. fig. 6) ; the distance between 

 their orioin and the aperture usually varies from 10-20 /z : the spines are 

 from 50-65 /a long and 2 /i in diameter at the base, tapering to a point. Those 

 found by Penard at Vancouver (39) had the spines modified into flat ribbon- 

 like appendages (fig. 30/>), and one found at Lakehurst also had the spines 

 flattened to 3 /a wide and 1/a thick with thickened extremities (figs. 30 c, c'). 



Dimensions. Lenoth 87-123 /x ; diameter 28-39 [x ; aperture 19-13 /i. 



Habitat. Submerged sphagnum. 



Distribution. New Jersey ! (Leicl//) : Roan Mountains, Ya. {Leidy, 30) ; 

 Wales and Ireland [G. S. West, J. Linn. Soc, Zool. xxviii. p. 328, 1901) ; 

 British C'ohimbia (Penard, 39). 



Var. LLBRATA, var. nov. (PI. 12. figs. 29 & 30 a.) 

 E. bracTiiata pars, Leidy, pi. 37. fig. 7 (30). 



Test as in the type, but furnished with two to four lateral appendages 

 ari.sing from near the centre of the sides, their free ends widened into 

 oav-like blades. Xucleus and pseudopodia normah 



Length 100-104/*; diameter 32-35 yu, ; aperture 13 /x : arms 35-38 yu, long, 

 1 jj, diameter, widening to 2*5 yu, at the extremities. 



Habitat. Submerged sphagnum. 



Distribution. New Jersey! (Leidy) : Roan Mountains, Ya. {Leidy)? 



Much less common than E. bracJiiata, of which at least twenty were seen 

 for each one of var. librata ; also less Aariable in size and number of arms, 

 which o-enerallv consist of two only. 



E. CRISTA TA, Leidy (31). 

 Leidy, pi. 37. figs. 1-4 (30). 



This species, found in moss and in lakes and ponds, varies between the 

 following dimensions : — Length 31-70 yu, ; breadth 12-21 yx: aperture 5-9 yu,, 

 "With an average size of : — Length 40-50 /x; breadth 14-17 /x. Onh one or 

 two individuals above or below these limits were found : the tuft of spines at 

 the apex is sometimes absent. 



Yar. MAJOR, Wailes (45). (PI. 12. fig. 31.) 



The test of this variety is generally larger than the type, less contracted 

 towards the aperture, and usually devoid of spines. The plasma and pseudo- 

 podia are normal. Length 60-90 yu, ; diameter 20-30 yu,; aperture 10-14 a. 



