EXPLANATION OF PLATE XXVIII. 
Figs. 1, 2, 3. Various aspects of Endodonta aculcata, Hedley. 
,, 4, 5, 6. Various aspects of Endodonta norfolkensis, Hedley. 
„ 7. Jaw of Papuina hindei , Cox. 
„ 8. Genitalia of the same. 
„ 9. Portion of radula of tlie same. 
,, 10, 11. Two aspects of Papuina may ana, Hedley. 
„ 12, 13. Two aspects of Dendrotrochus mentum, Hedley. 
„ 14. Tornatellina Wakefields , Cox. 
Figs. 10 and 11, natural size ; the remainder enlarged to various scales. 
