No. 413.] REVIEWS OF RECENT LITERATURE. 409 
Apoblema, and other forms. For the dicecious distomes a new family, 
the Schistosomidz, is created, and the remainder, constituting many 
subfamilies, is left in the family Distomida. Since, however, the 
genus Distomum is nonexistent, this ought to have been changed to 
Fasciolida. A similar change is necessary with the name Mono- 
stomide, but what name shall be used in its place is not now clear. 
Looss then gives the following scheme of the classification as 
emended, in connection with which it should be noted that there are 
numerous genera whose position even yet is a matter of doubt, and 
that this is not regarded by the author as in any sense a complete 
system : 
A. Aspidocotylea Mont. 
remains unchanged) 
Metastatica Lkt. 
B. jo een Mon 
mily le a Ne Brds. 
n7 mains unchanged) 
ec Apre str. Lkt. 
mily DIsTOMIDÆ Mont. (partim) 
Subfamily Amphistominæ Looss (= Family AMPHISTOMIDÆ Mont.) 
i epodermatinæ Lss. 
goderinæ Lss. 
s Brachyceeliine Lss. 
i Pleurogenetinz Lss. 
ephalogoniminz Lss. 
M Dicroceeliine Lss. 
r Syncæliinæ Lss. 
y Heterolopinæ Lss. 
* Urogoniminz Lss. 
Family (inquir. RHOPALIADJE! 
oellikeria Cobbold 
T SCHISTOSOMID# Lss. Schistosomum Weinland 
Bilharziella n.g. 
" GASTEROSTOMID/E Braun 
" DIDYMOZOONID Mont. Remain unchanged 
" ONOSTOMID Mont. 
! According to the recent investigations of Braun (Zow. Anz., Bd. xxiii, p. 27) 
closely related to the Echinostominz and consequently not of family rank. 
