218 TKANSACTIQNS LIVERPOOL BIOLOGICAL SOCIETY. 



classification of the Galcarea Heterocoela. Quart. 

 J. Micr. Sci. (n.s.), No. 138, pp. 159—257. 



3. Hanitsch, R. Revision of the generic nomenclature 



and classification in Bowerbank's ' British Spon- 

 gidae.' Trans. Liverpool Biol. Soc, VIII., pp. 

 173—206. 



4. Hanitsch, R. Amphiute, eine neue Gattung hetero- 



coeler Kalkschwamme, Zool. Anz., XVII., p. 433. 



5. Lendenfeld, R. von. A Monograph of the Horny 



Sponges. London, 1889. 



6. Lendenfeld, B. von. Die Spongien der Adria. I. 



Die Kalkschwamme, Zeitschr. wiss. Zool., LIIL, 

 pp. 181—321, 361—433. 



7. Polejaeff, N. Calcarea. Report on the Scientific 



Results of the voyage of H.M.S. "Challenger." 

 Vol. VIII. 



8. Sollas, J. W. Tetractinellida. Report of the Scien- 



tific Results of the voyage of H.M.S. "Challenger." 

 Vol. XXV. 



9. Topsent, E. Contribution a 1' etude des Spongiaires 



de l'Atlantique Nord. In : Resultats des Campagnes 

 scientifiques, etc., Monaco, 1892. 



Explanation of the Plates. 



Plate XII. 



Eig. 1. Amphiute paulini, n.g. and sp. Natural size. 

 [One or two individuals of the colony may be 

 somewhat misleading. The surface of the sponge 

 should appear smooth, not spiny, and the spicules 

 less*pronounced.] 



Eig. 2. Gastral tetract. The three straight rays are 

 facial, the fourth, curved ray is apical. (X 150.) 



