NovEMBER 17, 1899. ] 
parasites, the location within the hosts, or the 
bibliography of each species, the book is emi- 
nently successful. Apart from the Gregarinida 
where the descriptions are more complete, a 
criticism might be justly made against the ex- 
treme brevity of the specific descriptions, es- 
pecially where they deal with the adult organ- 
isms. For example, an adult form of the 
genus Coccidium, the sporulation of which is 
given for 17 species besides numerous varieties, 
is nowhere described. Of course the sporu- 
lation is the more important and the omissions 
are more than offset by the splendid bibliog- 
raphy which accompanies each specific name. 
One hundred and ninety-six figures, for the 
most part of spore-stages, accompany the de- 
scriptions. 
In accordance with the rules of nomenclature 
adopted by the Deutchen Zoologischen Gesell- 
schaft, the names of legions end in IpIA, the 
names of orders in IDA, of sub-orders, in INA, 
of tribes, in BA, of families in IDAE, and of sub- 
families in INAB. It isa relief to feel that, in 
the future, there will be no excuse for such 
haphazard terminations and names as have 
characterized the Sporozoa groups heretofore. 
The classification adopted by Labbé is based, in 
its main divisions (legions and orders) upon his 
classification of 1894. The two legions are the 
Cytosporidia and the Myxosporidia (his Histo- 
sporidia of 1894), the former containing four 
orders: Gregarinida, Coccidiida, Heemosporidiida, 
and Gymnosporidiida; the latter, two; Phzno- 
cystida and Microsporidiida. Sarcosporidia, 
Amebosporidia 4nd Serumsporidia are placed as 
Sporozoa incertz sedis, the terminations indicat- 
ing legion-value. Delage and Hérouard’s sub- 
orders of the Gregarinida are adopted (Cepha- 
lina and Acephalina), while the tribes and 
families are adapted from Léger. He follows 
his own classification of the Coccidiida, divid- 
ing them into two sub-orders: Polyplastina and 
Oligoplastina, the former into two tribes: P. 
digenetica and P. monogenetica; the latter into 
three tribes: Tetrasporea, Trisporea and Dis- 
porea, while family-groupings are discarded. 
It is to be noted that the single form in the 
tribe Trisporea is his very questionable genus 
Bananella, which Léger and others regard as 
an anomalous type of a four-spored (Tetra- 
SCIENCE. 733 
sporea) form, and which ‘Labbé himself admits 
may sometimes (‘accidentellement’) have four 
spores. |The Hzmosporidiida, without further 
sub-divisions, contains the three genera Lan- 
kesterella (Labbé), Caryolysus (Labbé) and Hem- 
ogregarina(Danilewsky). The Gymnosporidiida, 
without further sub-divisions, contains six 
genera: Caryophagus (Steinhaus), Halleridium 
(Labbé), Heemoproteus (Kruse) Plasmodium (Mar- 
chiafava & Celli), Laverania (Grassi & Feletti 
em. Labbé), and Cytameba (Labbé). For the 
terminology of the Malaria-organism (Plasmo- 
dium) which was first recognized by Laveran in 
1880 and, in 1883, named by him Oscillaria 
malariz, Labbé takes the generic name applied 
to it in 1885 by Marchiafava & Celli, and Lave- 
ran’s specific name, thus giving the Malaria 
organism the somewhat unfamiliar name of 
Plasmodium malariz. On the ground of pri- 
ority this name must supplant the, in some re- 
spects better, term Hemameba, given by Grassi 
& Feletti in 1890, with the advantage, however, 
of a more descriptive specific name in malaria, 
than has hitherto been known in Labbé laverant. 
On the whole, therefore, the new name Plas- 
modium malariz is fully as good as the one it 
supersedes—Haemameba laverani. Labbé now 
makes two certain sub-species: P. malariz ter- 
tianum (Golgi) and P. mal. quartanum (Golgi), 
and two questionable sub-species: P. mal. pre- 
coz (Grassi & Feletti) and P. mal. immaculatum 
(Grassi & Feletti). 
Of the four families of the Myxosporidia, 
three belong to the order Phenocystida (Myzxi- 
nid, Chloromyxide, Myxobolidz) and one to the 
order Microsporidiida (Nosematide). 
The volume contains a well-arranged list of 
the hosts of Sporozoa with the organs affected, 
while a key to families and genera, and in most 
cases to the species, will materially assist the 
student in placing forms. 
Taken, as a whole, the volume is a very wel- 
come addition to the literature of the Protozoa. 
Gary N. CALKINS. 
CoLUMBIA UNIVERSITY, 
New York Ciry, October 30, 1899. 
Leitfaden fiir das zoologische Praktikum von Dr. 
Witty KUKENTHAL, Professor in Jena. Mit 
172 Abbildungen im Text. Jena, Verlag von 
Gustav Fischer. 1898. 
