MURDOCH : ANATOMY OF SOME NEW ZEALAND MOLLUSCA. 



Fig. 1. 



3. 



■i. 



7. 



8. 



9. 

 ,, 10. 

 ,, 11. 



al.gr. 

 b.m. 



b.in.r. 



fpi. 



f.m. 



9-P- 



h.d. 



i. 



LI. 



l.t.r. 



in. 



ucd. 



/>■ 

 pd.c. 

 pd.g. 



EXPLANATION OF PLATE XVII. 



Rhenea Coresia, embryonic shell. (Magnified.) 

 ,, ,, teeth, half a row. 



,, ,, buccal mass. 



,, genitalia. 

 R/n/fida Greenwoodi, the mantle folded back, showing the lappets on 

 under side. Eight lappet partly turned down to show position of 

 respiratory and anal pores. 

 Rhytida Greenwoodi, genitalia ; a and b, varying, positions of the 



epiphallus. 

 Rhytida Meesoni, genitalia. 

 Schizoglossa Novoscelandica, shell. 



,, ,, mantle and lappets. 



„ ,, retractor muscles, pedal "'laud and cavity. 



Natalina Caffra, spermatophore and cross section of same. 



albumen gland. 



buccal mass. 



buccal muss retractor. 



epiphallus. 



foot-margin. 



genital pore. 



hermaphrodite duct. 



intestine. 



left lappet of mantle. 



left tentacle retractor. 



mantle. 



oviduct. 



penis. 



pedal cavity. 



pedal gland. 



p.m.d. posterior margin of diaphragr 



pr. prostate. 



r.l. right lappet of mantle. 



r.w. retractor muscle. 



r.m.p. retractor muscle of penis. 



rx. p. respiratory and anal pores. 



r.t.r. right tentacle retractor. 



s.i'./. sub-central lappet of mantle. 



s.d. salivary ducts. 



s.ff. salivary glands. 



upr. spermatheca. 



spriu. spermatophore. 



v.c. visceral cavity. 



v.d. vas-defereus. 



