COCHLIOPODIUM MINUTUM. 153 



with distinctly attenuated ends. -They are " colourless 

 hyaline projections showing no trace of any granula- 

 tion." When the animal is active the pseudopodia are 

 extended and retracted with considerable rapidity of 

 movement. Its minute size, the absence of nucleus, 

 and the pellucid, plain, and delicate test distinguish it 

 from the preceding species. 



4. Cochliopodium vestitum Archer. 

 (Plate XXXII, figs. 15-18.) 



Amphizonella vestita Aecher (pars) in Q. Jrn. Micr. Sci. 

 (n.s.) XI (1871), pp. 112, 135, t. vi, ff. 1, 2, 4-6. 



Cochlinpodium pilosum Heetwjg & Lesseh in Arch. mikr. 

 Anat. X (1874), iSuppl. p. 78. 



Gochliopodium vestitum Aechbe (pars) in Q. Jrn. Micr. Sci. 

 (n.s.) XVII (1877), p. 334; Leidy (pars) Freshw. Ehiz. 

 K Amer. (1879), p. 188, t. xxxii, f. 26; Hitchcock 

 Synops. Freshw. Ehiz. (1881), p. 30; Geeeff in Sitzber. 

 Ges. Nat. Marburg, 1888, p. 155; Blochmann Mikr. 

 Thierw. Siisswass. ed. 2 (1895), p. 15; Feenzel Prot. in 

 Bibl. Zool. IV, 12 (1897), p. 148 ; Aveeintzev in Trudui 

 S.-Peterb. Obshch. XXXI, 1 (1900),. p. 239; op. cit. 

 XXXVI (1906), 2, p. 136 ; andinBer. Siisswass. nat. Ges. 

 St.Petersb.I (1901),p. 211 ; G. S. West in Jrn. Linn. Soc, 

 Zool. XXVIII (1901), p. 313 ; Penaed Faune Rhiz. Leman 

 (1902), p. 198, ff. 1-5 (p. 199) ; Schouteden in Ann. Biol. 

 Lacustre, I, 3 (1906), pp. 330, 331, f. 1 ; Hoogeneaad in 

 Tydschr. Nederl. Dierk. Ver. (2) X, 4 (1908), p. 410. 



In general character resembling C. bilimhosum 

 Leidy, and of the same average dimensions, normally 

 rotund, but susceptible of variation, especially in the 

 anterior portion, where the envelope is very supple. 



Body nearly colourless or bluish, varied (says 

 Archer) by a pale brownish hue, " enclosing a number 

 of minute clear shining ' purplish-grey generally 

 elliptic, sharply-bounded corpuscles ; these forming a 

 stratum just under the periphery of the body below 

 which often .occurs a more or less dense stratum of 

 large bright chlorophyl-granules." The pseudopodia 

 hyaline, generally emanating in a cluster from the 



