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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 87 



maxillipeds (m/). The thorax bears five pairs of oostegites. On 

 the dorsal side of the abdomen is a prominent hemispherical cardiac 

 tubercle. The pleura {pi) and exopods {ex) on the abdomen are deli- 



FiGURE 12. — Cancrion carolinus, new species: A, Dorsal view of male; B, lateral view of 

 female (abd, abdomen; eg, head, or cephalogaster ; ex, exopods of second and third 

 abdominal segments ; h, cardiac prominence ; mf, maxilliped ; pi, pleural lamellae of 

 first abdominal segments) ; C, ventral view of male; D, side view of female showing 

 oostegites (ii-iv) ; E, posterior view of third right leg of male; F, O, developing eggs; 

 H, sketch of side view of epicarid larva ; /, camera-lucida drawing of ventral side of 

 epicarid larva ((v-1, first antenna; a-2, second antenna; ab~l, first abdominal leg; 

 t-7, last thoracic leg ; j, young female from body cavity of a crab. 



cate, much folded, and convoluted. The first pair of oostegites (i) 

 are small and folded against the side of the frontal prominence; 

 the second pair (fig. 12, Z>, ii) cover the first when seen laterally 

 and are notched distally; the third pair (iii) are truncate and ex- 



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