II. , REFERENCES TO THE PLATES AND FIGURES. 65 



PLATE VIII. 



Fig. 1. A transverse fold of the vcntriculus of Passalus cornutus, with numerous hair-like appendages 

 covered with granulo-filamentous phytoid matter, and bunches of Cladojih^lum and Corijnodadus. 

 a. Mucous membrane. 

 h. Hairs. 



c. Phytoid substance. 



d. Cladophytum comaium. 



e. Corynocladus radiatm. 



f. Arthromitus crislutus. 



Fig. 2. Portion of the mucous membrane of the ventriculus of Jidus marginaUis, with patches of granulo- 

 phytoid matter growing upon it. 



a. Patches of granulo-phytoid matter. 

 h. Harder nuclei of phytoid matter. 



c. Bunches of Cladophytum comaium. 



d. Arthromitus cristatus. 



e. Epithelial surface. 



f. Basement-membrane. 



Fig. 3. Portion of Entcrohryus elegans, with two large bunches of Arthromitus cristatus, and a tuft of 

 Cladophytum. 



Fig. 4. Portion of Entcrohryus elegans, overgrown with profuse bunches of Arthromitus cristatus. 



Fig. 5. Summit of a hair-like appendage, from which grow numerous filaments of Arthromitus and other 

 finer phytoid filaments, from the ventriculus of Passalus cornutus. 



Fig. 6. Summit of a primary cell of Entcrohryus elegans, from which grows a bunch of Cladophytum 

 comatum. 



Fig. 7. Two branches of Cladophytum, exhibiting minute ramuli. 



Fig. 8. Bunch of Cladophytum comatum, and several long filaments of Arthromitus growing from a 

 portfon of the mucous membrane of the ventriculus of Julus marginatus. 



PLATE IX. 



Fig. 1. Represents a portion of the inner surface of the ventriculus of Passalus cornutus, with its numerous 

 hair-like appendages enveloped in a parasitic, granulo-filamentous, phytoid substance. 



a. Light shading, representing the bottom of the sacculi of the ventriculus, furnished with short hairs. 



h. Broad transverse folds of the mucous membrane, between the sacculi. 



c, d. Longitudinal folds separating the sacculi, and presenting on each side, between the position of 



the transverse folds, a column of closely-set, simple, bidentate, and tridentate corneous spines. 

 e. Long hair-like appendages, which border the ventricular sacculi and become the nuclei of large 



masses of growing phytoid matter. 

 /. Short hairs, everywhere studding the mucous membrane, and also enveloped with phytoid matter. 

 Fig. 2. Portion of a transverse fold of mucous membrane, from between the ventricular sacculi of 

 Passalus cornutus, with its hair-like appendages enveloped in phytoid matter exhibited of the natural colors. 

 a. Mucous membrane. 

 h. Hair-like appendages. 



c. Granulo-filamentous phytoid matter. 



d. Bunches of Cladophytum. 



e. Bunches of Corynocladus. 



