96 
P. ERNEST WEISS. 
Fig. 9. Coelom opened (pericardium and perigonadium). v.p. a. Viscero- 
pericardial aperture. i. a. Internal aperture of renal papilla, st. 
Stomach, g. ar. Genital artery. ovd. Oviduct. ini. ap. Internal 
aperture of oviduct, rt. ovd. Right oviduct, red. Rectum, hr. art. 
Branchial artery. Or. heart. Brauchial heart. 
Fig. 10. Funnel opened, showiug valve and lateral pads of Verrill’s 
organ, m.f Mantle fastening. 
Fig. 11. Mantle cavity laid open. m. d. i. Musculi depressores infundi- 
buli. ov. gl 1 . Accessory oviducal gland, gl. Oviducal gland proper. 
nid. gl. Nidimeutal gland, c. llidge, cartilaginous ridge fitting into 
the groove (m.f) forming the mantle fastening. 
Fig. 12. Tentacular arm, with pad and suckers forming the fixing 
apparatus. 
