BTTCCINUM. 



363 





Os. n. = Osphradial nerve. 



Osp. cil = Ciliated cell region of 



osphrad. leaflets. 

 Osp. gl. = Gland cell region of 



osphrad. leaflets. 

 Osp. so. = Sensory cell region of 



osphrad. leaflets. 

 Osph. = Osphradium. 

 Ot. = Otocyst. 

 ov. = Ovary (oviduct in figs. 38 



and 37). 

 ova. = Eggs. 

 ovd. = Oviduct. 

 ovd.'" = Vaginal part of oviduct. 



P. = Penis nerve. 



Pall. = Mantle. 



Pall. ep. = Mantle epithelium. 



Pall. gl. = Mantle conn, tissue. 



pall. n. & w." = Pallial nerves. 



Ped. g. = Pedal ganglia. 



Ped. gl. = Pedal gland. 



ped. gr. = Pedal groove. 



ped. mus. = Pedal muscles. 



ped. n. — Pedal nerves. 



Pen. = Penis. 



Per. p. = Pericardial cavity. 



Ph. = Pharynx. 



Pig. = Pigment. 



pi. I. = Left pleural ganglion. 



pi. p. = Pleuro-pedal connective. 



pi. r.= Right pleural ganglion. 



pr. = Processes of retinal cells. 



prob. = Proboscis. 



prob. m. = Proboscis muscles. 



Ps. cor. = Pseudo cornea. 



Pul. = Larval heart. 



r.' & r." = Retractor muscles 



(dorsal). 

 R. Sin. = Reno-mucous vessel. 

 Rect. = Rectum. 

 Ren. = Renal organ. 

 ren. cil. = Ciliated cells of renal 



epithelium. 



ren. eff. = Vessels of renal organ. 



ren. ep. = Renal epithelium. 



ren. lam. = Renal lamella. 



ren. r. = Renal ridges. 



Ret. c. = Retinal cells. 



rhyn. = Rhynchodoeum. 



Rst. = Rhj^nchostome. 



S. = Stomach. 



S. gl. c. = Salivary gland cells. 

 Sal. d. = Salivary duct. 

 Sal. gl. = Salivary gland. 

 Siph. = Pallial siphon. 

 Siph. w. = Siphon nerves. 

 Sptd. = Spermatid. 

 Spte. = Spermatocyte. 

 Spz. = Spermatozoa. 

 St. = Stomach. 

 Si. s. = Stif tchen. 

 sub. int. = Subintestinal ganglion. 

 sup. int. = Supraintestinal ganglion. 

 sup. m. = Supporting structure of 

 ctenidial leaflets. 



Tent. = Tentacle. 



tent. =Tent. nerve (fig. 42). 



tri. lot. = Triangle lateral. 



V. def. = Vas deferens. 

 V. def.' = Coiled part of vas deferens 

 V. ^e/." = Vas deferens in penis. 

 V. def. c. = Vas deferens canal. 

 V. e. m. = Ventral muscle sheet. 

 V. pr. m. = Ventral protractor 



muscles. 

 V. r. = Retractor muscles (dorsal). 

 v. r. m. = Ventral retractor muscles. 

 vas. d. = Vas deferens. 

 vel. = Velum. 

 vis. com. = Visceral commissure. 



X. con. = Connect, tissue of mantle. 



Zyg. = Zygoneuric connection. 



