138 BBITfSH FEESHWATEE EHIZOPODA. 



Gromia oviformis having been made the type of the 

 genus Gromia, as explained above (p. 127), Dujardin's 

 G. fluvialis, which has reticulated pseudopodia, should 

 be taken as the type of the genus Allngromia. There- 

 fore the original figvires of Gromia fiavinlis are here 

 reproduced (fig. 167). There is no similitude between 

 these and the figure given by Claparede & Lachmann 

 of Lieberlcuelmia ivageneri (see fig. 155, p. 135), nor is 

 there between the descriptions of these species, and 

 they are here treated as distinct, not only specifically 

 but also generically. 



The genus Allogromia contains six species, of which 

 four are exclusively marine. 



Synopsis op the Buitish Species. 



Test large, 80-120 /u in length. (I) A. fluvialis. 



'i'est small, about 30 yu in diameter. (2) A. stagnalis. 



1. Allogromia j9.uvialis (Dujardin) Rhumbler. 

 (Figs. 157 and 158.) 



Grumia fluvialis 



DujABDiN in Ann. Sci. nat. (2) VIII il837), pp. 311-312, pi. ix, f . 2 ; in 



Pr.-Verb. Soc. Philom. Paris, 1838, p. 7 ; in Institut, VI (1838), p. -47. 

 Gbrtais in Ajin. fran?. etrang. Anat. II (1838), pp. 128-129. 

 Stein Org. Infus. (1859), p. 25. 

 Gromia fluviatilis 

 Okbn in Isis, 1839, col. 366. 

 Dtjjardin Hist. nat. Zooph., Infus. (1841), p. 255, pi. i, f . 17 ; pi. ii, 



flc. 1, 2. 

 Richardson in Mior. Jrn. 1841, pp. 26-27. 

 Pertt Kenntn. Heinst. Lebensf. (1852), p. 188. 

 Griffiths & Hbnfrbt Microg. Diet. (1855), p. 299, pi. xxiv, f. 15 ; 



ed. 4 (1883), p. 366, pi. xxxi, f. 15. 

 Archer in Qrt. Jrn. Micr. Sci. (n. s.) VI (1866), p. 185 ; op. cit. (N. s.) 



IX (1869), p. 390 ; in Proc. Dubl. Micr. Club, I, 2 (1868), p. 51 ; 



op. cit. II, 2 (1874), p. 129. 

 ScHOCH Mikr. Thiere Siisswass.-Aq. I (1868), p. 15, pi. i, f. 5; in 



Nenj. nat. Ges. Zurich, 1870, pp. 4-6, pi., f. 1. 

 Eyferth Einfach. Lebunsf. (1878), p. 34 ; op. cit., ed. 2 (1885), p. 52 ; 



ed. 3 (1900), p. 270. 

 Greeff in Sitzb. Ges. Nat. Marberg, 1888, p. 120. 

 OuNBO in Boll. Scient. XII (1890), p. 142. 

 Lb Dantek in Compt. rend. Acad. Sci. GXIX (1894), p. 1279 ; in Jrn. 



R. Micr. Soc. 1895, p. 185 ; in Bull. sci. Prance Belg. XXVI (1895), 



pp. 56-90, fl. 1-7; in Peuille Nature!. (3) XXVI (1895), pp. 57-58. 



