578 
PROTOZOA. 
numerous pigment granules and pulsating vacuoles. In its early stage, 
Chlamydomyxa is found endoparasitic in the cellular or intercellular 
tissues of aquatic plants (e. g. Sphagnum, which is apparently killed by 
its exuberant evolution) ; in its developed condition on the outside of 
leaves or roots, mostly dormant, sometimes with the contents broken 
up in encysted balls. C. labyrinthuloides, sp. n., Archer, 1. c. (Ireland, 
in pools). 
While Huxley is highly inclined (Qu. J. Micr. Sci. xv. pp. 390-392 ; 
Nature, xii. pp. 315 & 316) to drop the Bathybius as reposing upon a 
delusion (sulphate of lime precipitated in a flocculant state frorii 
sea-water by the strong alcohol in which the specimens of the deep-sea 
soundings examined were preserved), its place is apparently taken by the 
Protobathybius of Bessels [Zool. Bee. xi. p. 544]. A figure is given in 
A. S. Packard’s “ Life histories of animals, including man, or outlines 
of comparative embryology ” (New York; 1876), p. 3 (reprints from Am. 
Nat. ix. pp. 37, 87, 160, 218, 282, et seq.). It is mainly distinguished from 
Bathybius by the absence of discolithes and cyatholithes [which have been 
shown previously by Wallichto belong to the “ coccospheres,” floating at 
the surface of the sea, and therefore can only be regarded as “ foreign mat- 
ter ” in relation to the presumed protoplasmatic substances of the sea- 
bottom], consists of nearly pure protoplasm, contains fine grey granules and 
a great number of oleaginous drops, but hardly any foreign matter, except 
a fine sediment of limestone constituting the bottom of the sea ; it manU 
feats very marked [“magnificent”] amoeboid motions and takes up particles 
of foreign substances suspended in the water.” Lively “ granule-streani- 
ings”were also observed (Jen. Z. nat. ix. p. 227). (90 fath., Smith’s 
Sound). 
Minute ramified excavations with a single external orifice, of the 
superficial layers of shells from the Bay of Biscay, the Mediterranean, 
and the Indian Ocean, are referred to the genus DewcZrma, comprising 
similar excavations of Belemnitella and other genera in the cretaceous 
and Jurassic epochs. The absence of spicula and the presence of delicate 
canaliculi branching from the cavities suggest to Fischer (6) that they 
are the home and fabric of a peculiar, type pf perforating Sarcodarians, 
more related to the RMzopoda than to the Spongiaria. 
Fossil Rhizopoda^ 
E. Vanden Broeqk, Observations sur la NummuUtes planulata du 
paniselien (Bull. Soc. Geol. 3, ii. p. 559). M, Quelques considerations 
sur la d4couverte dans le calcaire carbonifere de Namur d’un fossile 
microscopique nouveau appartenant au genre NummuUtes (Ann. Soc. 
G6ol. Belg. i. p. 16). H. I. Miller, Observations sur Isl NummuUtes pla- 
nulata, var. minor (Ann. mal. Belg. viii. p. 20). M. V. Hantken, Die 
Fauna der Clavulina Szaboi-Schichten. i. Foraminiferen (Mittheil. a. d. 
Jahrb. d. k. ungar. geol. Anst. iv. 1. 93 pp. 16 pis.). Terquem, Recher- 
ches sur les Foraminiferes du department de la Moselle (i.-x., Metz 
and Paris, 1868-74) [not seen by the Recorder]. F. W. Dawson, Note 
on the occurrence of Foraminifera in the cretaceous rocks of Manitoba 
