EXPLANATION OF PLATE XXXIII. 
A, B,C. Animal of Limanc@a emarginata Say, var. mighels, Binney. 
A, from above; B, from below; C, from the right side, showing 
extended velum. 
D. Genitalia (principally female). 
Tom 
A, atrium or vestibule of vagina; AL, albuminiparous gland; 
O, ovotestis; OD, ovisperm duct; PD, duct of prostate gland; 
PR, prostate; S, spermatheca or receptaculum seminis; 
SD, duct of spermatheca; V, vagina; VM, retractor muscles of 
vagina; U, uterus, 
Male organs. 
CG, cerebral ganglion; CM, columella muscle; F, vas deferens; 
P, penis; PG, pleural ganglion; PN, nerve to penis; PS, penis 
sac; PSM, penis sac protractor muscles; PSN, penis sac nerve; 
RM, retractor muscle of penis; VD, penis retractor muscle; 
G, visceral ganglion; VN, nerve to vagina. 
Portion of ovotestis, showirg blood vessels (x 519). 
Cells from the albuminiparous gland (x 519). 
Diagrammatic section of intestine; BLV, branch of lateral blood 
vessel; ELO, epithelial layer of cesophagus; IC, intestinal cav- 
ity; LV, lateral blood vessel; ML, muscular layer of cesophagus. 
Portion of lung, showing two main vessels and several connective 
vessels (x 519). 
Portion of lateral blood vessel with one branch with its connective 
plexus (x 519). 
(Bull. Chi. Acad. Sci., Vol. II, No. 3, pl. iii.) 
