MICROCORYCIA. . 25 
Test composed of a flexible membrane, discoid or 
approximately hemispherical in form, with a fine, 
‘diaphanous continuation or fringe around the peri- 
phery, capable of being folded together or completely 
closed by the drawing together of the free borders; 
the crown of the test smooth or furnished with excre- 
scences ; the plasma not entirely filling the test; nuclei 
one or two in number ; pseudopodia lobular or digitate. 
The description of this genus as Corycia by Dujardin 
is far from explicit and is unaccompanied by any 
drawing; we have followed Penard in identifying it 
with Amphizonella flava Greeff and not with Pamphagus 
mutabilis Bailey (Lecythium mutabile), as suggested by 
Leidy. , 
SYNOPSIS OF THE British SPEcIEs. 
Test 80-100 u (or more) in diameter; crown of test smooth 
or sparsely covered with small adherent grains. (1) M. flava. 
Test minute, 24-30 uw in diameter. (2) M. radiata. 
1. Microcorycia flava (Greeff) Cockerell. 
(Plate LVIII, figs. 11-13.) 
Amphizonella flava 
GREEFF in Arch. mikr. Anat. II (1866), pp. 329-330, pl. xviii, f. 19 a, b. 
ARCHER in Qrt. Jrn. Micr. Sci. (2) XI (1871), pp. 130-131, 134-135. 
Magar in Rend. R. Ist. Lomb. (2) X (1877), pp 309, 315-324, pl. ii, 
ff. 1-6, 8, 11, 12. 
Corycia dujardini 
GAGLIARDI in Qrt. Jrn. Micr. Sci. (2) XI (1871), p. 80. 
Corycia flava 
Penarp Faune Rhiz. Léman (1902), pp. 173-177, 9 figs.; in Arch. 
Protist. II (1903), p. 254; op. eit. XVII (1909), pp. 259-260; Sarco- 
dinés in Cat. Invert. Suisse (1905), p. 31. : 
AVERINTZEFF in Trudui S.-Peterb. Obshch. XXXVI, 11 (1906), 
pp. 142-143. 
ScHOUTEDEN in Ann. Biol. lacustre, I, 3 (1906), pp. 232-233. 
Brown in Naturalist, 1910, p. 92; in Brit. Assoc. Handb. Sheffield 
(1910), p. 500. 
Waites & PENARD in Proc. R. Irish Acad. XX XI, txv (1911), pp. 9, 
15, 28. 
WAILEs in Jrn. Linn. Soc., Zool. XXXII (1912), pp. 123, 131; loc. cit. 
(1913), pp. 212-214, 
HEIn1s in Mém. Soc. Neuchatel, V (1914), pp. 677, 681, 696. 
Microcorycia flava: 
CocKERELL in Zool. Anzeig. XX XVIII (1911), p. 137. 
