of England and India. 33 



die T^ yth, aperture -g^rtli, body- scales -o-rrrth long by -rrs-oth 

 of an inch broad. 



Loc. South coast of Devon^ Budleigh-Salterton. 



Obs. Of this Rhizopod I have only found two specimens, one a 

 little broader and shorter than the other. It strictly agrees with 

 Euglypha alveolata, as may be seen by my figure of the latter 

 (Annals, ser. 2. vol. xviii. pi. 5. fig. 25), in the essential features 

 of the genus, but difi'ers from it specifically in its compressed 

 form (after which it has been designated), its sutural edge, re- 

 striction of the hairs to this line, and in the figure of the scales. 



Euglypha alveolata. PL II. fig. 17. 

 The accompanying figure of this species is to show that it may 

 possess at least twelve hairs scattered over the posterior part of 

 the test, or in a variable number down to their complete ab- 

 sence ; also to show that the body-scales of the specimens here 

 found are circular and overlap each other, giving the area an hexa- 

 gonal form, and not an oval one, as that of the scales of the 

 specimens found in the island of Bombay, to the illustration of 

 which I have just referred; further, that the pointed ends of 

 the scales aroftnd the aperture present serrated edges under a 

 high power, that is, under a ^th-of-an-inch object-glass. 



Cyphoderia, Schlumberger (mihi)*. 

 Cyphoderia margaritacea, Schlum. PI. II. fig. 18. 

 This, although extremely common here (south coast of Devon), 

 I have never met with in the island of Bombay. It has been 

 figured to show how far it agrees and how far it differs from 

 Euglypha. The test varies in form occasionally by the presence 

 of a diverticulum posteriorly, which is more or less extended, as 

 in Difflugia acuminata, and which I have never seen in Euglypha. 

 During progression, the test is inclined, corresponding with the 

 oblique direction of the aperture, which, in all the testaceous 

 Rhizopoda when in motion, is brought into parallelism with the 

 plane on which they may be creeping, and thus determines the 

 position of the test under these circumstances. The scales of 

 the body are more or less regularly hexagonal and in juxta- 

 position, but not denticulated (as in Euglypha) at the aperture, 

 which, in Cyphoderia margaritacea, presents a beaded edge, c. 

 But it is not until we come to the pseudopodia that we find any 

 very marked difference between this genus and Euglypha, and 

 here only in their length, branched condition, the rapidity with 

 which they are projected (more resembling those of Trinema 

 acinus, J) nj. = Euglypha pleurustoma, Cart.), and the peculiar 



* See description ap, Pritchard, p. 557, ed. 1861. 

 Ann. ^^ Mag. N, Hist. Ser. 3. Vol. xiii. 3 



