EXPLANATION OF PIRATE XLVIII. 



Dihangia koboensis, n. sp. 



Fig. I. — Animal from the underside, opened along the sole of the 

 foot and turned back to show the packing of the 

 internal organs, the extruded penis and generative 

 aperture is shown and the approximate position of 

 the retractor muscle penis attachment, X 3"4. 



,, la. — Posterior lobe of the liver. , 



,, 2. — Part of the genitalia. The penis extruded close to the 

 right eye- tentacle, showing internally the retractor 

 muscles of both, x 3'4. 



,, 3. — Part of the genitalia. External : The penis on the right 

 side showing the generative aperture leading to the 

 spermatheca ; the right eye tentacle and right oral 

 tentacle adjacent. Internal: The amatorial organ, 

 the spermatheca, ovotestis, etc., up to the albumen 

 gland and hermaphrodite duct, X 34. 



,, 4. — View of branchial sac, heart, kidney and hermaphrodite 

 gland lying beneath the shell, seen from the ventral 

 side, opposite the floor of the foot, X 3*4. 



,, 4a. — Same area on another plane showing the lobes of the 

 hermaphrodite duct, X 3*4. 



,, 5. — Mantle lobes and shell removed, dorsal view of 4 and 4a 

 with the very slightest remnant of the first whorl of 

 the visceral sac, X 3*4. 



Galongia kempi, n. sp. 



Fig. 6. — Animal, right side, note apex of shell (S), X 2"25. 



,, 6a. — Extremity of foot and mucous gland, X 6. 

 Figs. 7, ya. — Shell from above and below, X 6. 

 Fig. 8. — Generative organs, complete, X3'4. 



,, 9. — Teeth of the radula, at different parts of the row, X368. 



J, 10. — Jaw, X 18. 



EXPLANATION OF LETTERING. 



Am. or. amatorial organ ; alg. albumen gland ; ant. anterior ; post, poste- 

 rior ; hd. hermaphrodite duct ; hg. hermaphrodite gland ; br. branchial sac ; 

 tfen. ap. generative aperture ; rmp. retractor muscle penis ; rme. retractor eye 

 tentacle ; et. eye-tentacle ; h. heart ; i. intestine ; ov. oviduct ; f. foot ; k. kid- 

 ney ; 1. liver; p. penis ; sp. spermatheca ; ot. oral tentacle; m. mantle edge or 

 muscle. 



