Bull. U. S. B. F., 1909. 
Plate XLIV. 
Fig. 5. 
Fig. i. — I mmature ovary of lobster with abnormal ring on left anterior lobe for transmission cf left antennal artery {ant. art ) 
H , heart. 
Fig. 2. — Reproductive organs from right side of male, dissected to show sperm duct, and spermatophore ( Sph ) pressed from slit 
made in its side, p. s, gl. s, sp. mu 9 duct . ejac, proximal segment, glandular segment, spnincter muscle, and ductus ejaculator- 
ius of vas deferens; pap, papilla for opening of duct on coxa of fifth pereiopod. 
Fig. 3. — Transverse section (in plane x, fig. 4, pi. xliii) of homy pouch of seminal receptacle of female lobster, showing contained 
spermatophore (Sph), gelatinous coats (g), and soft substance on lower side (w) over sternal bar. a. Anterior; p, posterior 
Fig. 4. — Left third swimmeret of female, 9 V 2 inches long, with bifurcated endopodite; anterior side. 
Fig. 5. — Tobster’s egg, showing its two membranes ruptured and greatly distended by reagents; mb 1 , primary membrane or 
chorion; mb 2 , cement membrane of attachment, forming bag continued into basal stalk 
