FROM NEW YORK;, NEW JERSEY, AND GEORGIA. 149 



Form (a) is found at Good Grround, L.I. Dimensions : Length 48-58 /* ; 

 breadth 24-29 fi ; aperture 7-10 yu, ; thickness two-thirds of the breadth. 

 Spines 18—26 /u, long, arranged in a single row. 



Var. SPINOSA, var. nov. (PI. 12. fig. 39.) 



?^. ciliata var. stricjosa pars, Leidy, pi. 35. fig. ]9 (30). 



Test like type, but furnished with spines sparsely scattered over the 

 surface of the test. Plasma and pseudopodia normal. 



Length 60-90 /u- ; breadth 26-40 /a; aperture 10-15 /a ; thickness 

 0'8 to 0*9 [I. Spines 10-30 [m in length. Scales about 9*5 yu, by 4*5 fx. 

 Nucleus 12-14 yu, in diameter. 



Habitat. Submerged sphagnum. 



Distribution. New Jersey ; Alabama (Leidi/). 



Like the type, this variety is distinguished from JE. alveolata and all other 

 species included in Div. I. of the Table of Euglypha by having articulated 

 spines ; the slight compression of the test distinguishes it from other spine- 

 bearing species included in Div. II. 



E. MUCRONATA, Leidy (31, 1878). 

 Leidy, pi. 37. figs. 11-14 (30). 



The individuals of this species recorded from Lakehurst (about half a 

 dozen) agreed with Leidy^s descriptions and illustrations ; none were observed 

 in a state of activity. The following additional details may be added to 

 Leidy's account of this species : — The aperture-scales are bluntly rounded, 

 each having three crenulations in relief, which form low rounded projections 

 beyond the edge ; the body-scales are oval, about 13 [x by 10 /i, becoming 

 narrower towards the extremities of the test ; the spines are continuations of 

 the terminal scale or scales, which are fitted together with great exactness ; 

 just within the apex there may be a chitinous diaphragm ; the spines are 

 flattened, measuring 2 //, by 1-25 yu, near the base, 12-23 /x in length. 



Length 100-130 [x (Leidy, 108-140 ^l) ; diameter 37-43 //, (Leidy, 32- 

 44 yu,) ; aperture 15-20 yu- ; spines 12-23 yu, (Leidy, 20-44 yu,). 



Distribution. New Jersey! {Leidy) ; Cape Horn (Certes). 



E. STRIGOSA (Ehrenb.), Leidy. 



E. ciliata var. strigosa pars, Leidy, pi. 35. fig. 20 (30). 



In all the localities, as in Britain, this is the most numerous species ; it 

 did not exceed in size those found in Europe, namely 45-100 [x in length. 

 Owing to Leidy as a rule showing only one view of the tests which he 

 illustrates, fig. 20 is the only one of this species about which there is no 

 reasonable doubt. The characteristic features are a compressed test with a 

 circular aperture, generally bordered by thickened aperture-scales. 



