20 Prot. 
PROTOZOA. 
Protospongia, p. 363. Nearly allied to Phalansterium ; forms colony- 
stocks, excreting and inhabiting a common mucilaginous matrix. Appears 
to be nearly related to the Spongiida. P. hceckeli, fresh water. 
Paramonas, p. 370. Based on Monas glohosa, Fromentel, &c. A dis- 
tinct anterior mouth, at base of flagellum. 
Colacium steinii. 
Chloromonas, p. 401. Based on Cryptoglena pigra, Ehrb. 
Sterromonas [^Sterrho-"]^ p. 420. Free-swimming, with two flagella, 
one stiff, the other mobile. S.formicina, infusions in salt and fresh water. 
S. huetschli. 
Dinomonas^ p. 421. Two flagella. Oral aperture very expansile. D. 
vorax^ tuherculatus, infusions in salt and fresh water. 
Chilomonas amygdalum. 
Diplomastix, p. 431. To contain forms intermediate between Hetero- 
nema and Anisonema^ e.g., Bodo caudata, Stein. 
Monosiga gracilis^ Kent, woodcut, Ann. N. H. (5) i. p. 6. 
Monopodium, Mereschkowsky, Verh. Zool. sect. vi. Versamml. russ. 
Naturforscher und Aertzte, reported Zool. Anz. iii. p. 139. Based on 
il/. Tcowalevshyi, id. ibid., Naples. A Moneron, consisting of tolerably 
homogeneous granular protoplasm, and small slightly contractile vacuole ; 
a single long locomotor pseudopodium. Reproduction was observed to 
be effected by conjugation of two individuals, with subsequent division 
into two of the joint mass. 
Protamccba [name already in use for a similar form, viz., P. primi- 
tiva, auctt. — Recorder], Korotneff, (5) p. 467. Based on P. primordi- 
alis, id. ibid. pi. xxxv. figs. 1 & 2. Distinguished from Amoeba primitiva 
and Protogenes by the nature of its pseudopodia. Protoplasm homo- 
geneous, containing a vacuole. 
Dactylamcebaj Korotneff, (5) p. 469. Based on D. elongata, id. ibid. 
pi. xxxv. figs. 7 & 8. The anterior part of elongated body is transparent, 
with long conical pseudopodia ; the posterior part has a central granular 
mass containing brown granules, and an exterior hyaline investment, and 
at the posterior end a group of small and fine attaching processes. A con- 
tractile vacuole in each division of the body. 
Pelomyxa parvi-\_pari'>-'\alveolata, Korotneff, (5) p. 473, pi. xxxvi. 
figs. 1-5, marsh-water. 
Laguncula piscatoria, J. H. Fisher. A supposed new species, New 
York ; Am. Micr. J. i. p. 167. 
The Monads found by Grassi {supra, p. 1] are divided into 2 genera 
and 6 subgenera, as follows : — 
Monocercomonas, Avith simple tail. Subg. 1, Monocercomonas, for AT. 
hominis (? = Cercomonas hominis, Dav.), cavice (Dav. ?), coronellce 
(Hand.?), anatis, batrachorum, muris, lacertce, and viridis; 2, Tricho- 
monas, for T. melolonthoi ; 3, Petortamonas {Petortom-'], for T. grillo- 
talpce {gryll-'\ ; 4, Schedoacercomonas, for S. gryllotalpce, melolonthce, and 
cavice, and S. muscce-domesticce (Barn.). 
Dicer comonas, Avith bifid tail. Subg. 1, AlonomorphuSfiov M. ranarum 
(Dug.) ; 2, Dimorphus, for D. muris. 
