24 F&t'm. 
VERMES. 
Diglena catellina, $ & £ , description, with figs., nervous system, 
excretory system, &c. ; id. 
Ertemias tetrathrix ; Hood. 
Floscularia campanulata ) ^ Sc $ ) with figs. ; Weber. 
Jlydatim senta , ? & $ , general anatomy, with figs. ; id. 
Limnias annulatus, L. granulosus , n. sp., with figs. ; id. 
Microcodon clavus : general anatomy, with figs. ; id. 
(Ecistes socialis, n. sp., with figs. ; id. 
Rotifer trisecatus , n. sp., general anatomy, with figs. ; id. 
Rotifer elongatus } n. sp., general anatomy, with figs. ; id. 
NEMERTEA. 
Homology of cerebral fissures ; Salensky (2). 
Lateral organs ; Devolitzky. 
Nervous system of various forms ; Burger. 
Spermatogenesis ; Lee (2). 
Parasitic Nemertines ; Braun (1). 
TREMATODA. 
Anatomy ; Biehringer. 
Amphistomum grande , in the Terrapin ; Leidy (2). 
Amphistomum subtriquetrum , in the Musk Rat j id. (6). 
Aspidogaster condiicola\ anatomy and development; Voeltzkow (1). 
Aspidogaster limacoides : description; id. (2). 
Bilharzia and Epicystitia ; Fenwick. 
Bilharzia hcematobia ; Virchow. 
Bilharzia in Sicily ; Grassi & Revelli (1). 
Cercaria terrestris , n. sp., from liver of Helix lens ; yon Linstow (2). 
Cercaria terricola , n. sp., from liver of Helix vermiculata ; id. t. c. 
Distomum acanthocephalum } with fig. ; Stossich. 
Distomum bacillar e, with fig. ; id. 
Distomum benedenii , with fig. ; id. 
Distomum claviforme ) n. sp., with figs. ; Be Andes (1). 
Distomum clavigerum : anatomy and histology, with pis. ; Pachinger (2). 
Distomum eckinatum , in the Musk-rat ; Leidy (6). 
Distomum galactosomum , n. sp., with description ; id. (4). 
Distomum turgidum } n. sp., with figs. ; Brandes (1). 
Distomum pedicellatum, with fig. ; Stossicii (2). 
Gasterostomum minimum , with fig. ; Stossicii (2). 
Heterahis inflexa, with fig. ; id. t. c. 
Heterahis vesicular is ^ with fig. ; id. t. c. 
Tlolostomum: orientation; Brandes (2). 
Polystomum oblongum and P. coronatum , n. sp., in the Terrapin ; 
Leidy. 
