occurring in the Carolinas, arranged by family 



barriers. Numbers marked with an asterisk duplicate numbers in adjacent columns) 



2, 3, and 4. Other terms not listed are shown on 

 these figures. 



Acicle. — Antennal scale which is reduced to a 

 spine. 



Afferent channels. — Openings through which 

 water passes to the gills. In brachyuran crabs, 

 usually opening behind the pterygostomian re- 

 gions and in front of chelipeds except in certain 

 Oxystomata in which they open at anterolateral 

 angles of palate or endostome. 



Antennal spine. — Spine on anterior edge of 

 carapace immediately below orbit adjacent to base 

 of antenna (fig. 2). 



Anterolateral teeth. — Teeth on anterolateral 

 border of crabs between orbit and lateral spine, 

 exclusive of outer orbital teeth. 



Apodeme. — Any cuticular ingrowth of body 

 wall. 



Appendix interna. — Small separate branch on 

 medial side of pleopodal endopodite tipped with 

 hooks which interlock with opposite member in 

 swimming. 



Appendix masculina.— Accessory male organ 

 located medially on second pair of pleopods be- 

 tween endopodite and appendix interna. 



Arthrobranchiae.— Gills attached to articular 



MARINE DECAPOD CRUSTACEANS OF THE CAROLINAS 



