LIGIA. 97 
EXPLANATION OF PLATES. 
Pruate I. 
Ligia oceanica (Linn.), dorsal view, x 4. 
Hig.. l 
Hig: 2 
Fig. 3 
Fig. 4 
Hig... 
Fig. 6 
Fig. 7 
Hie, 8 
He i59 
Fig. 10 
Fig. 11 
Fig. 12 
Fig. 13. 
Fig. 14 
Prage 10. 
First antenna seen from the side: much 
enlarged. 
Second antenna of left side seen from above. 
Left mandible seen from below. 
Teeth and molar process of mandible from the 
posterior side. 
First maxilla of left side. 
Second maxilla of left side. 
Left maxillipede. 
First pereiopod of male. 
Seventh pereiopod of male. 
Second abdominal appendage (or pleopod) of 
left side of male, showing copulatory style; 
anterior view. 
Fourth abdominal appendage (pleopod) of male, 
posterior view, showing the inner lamella. 
Third pereiopod of female, attached to the 
epimeral plate, showing one of the brood pouch 
lamellae arising from the sternum internal to 
the appendage. 
Fourth abdominal appendage of female, 
anterior view. ‘The inner lamella can be seen 
by transparency; also the afferent (a.b.v.) and 
efferent (e.b.v.) branchial vessels. 
Uropod, showing sensory process at the tip of 
the inner style. 
