CARAPACE CARINAE

(a) antennal. Extending posteriorly from antennal spine.

(b) branchial. Extending posteriorly from orbit over branchial region.

(c) branchiocardiac. Dividing branchial from cardiac region.

(d) gastroorbital. Extending posteriorly from supraorbital spine; Syn., supraorbital carina,

(e) lateral. On lateral margin of carapace.

(f) orbital. On margin of orbit.

(g) posterior. Transverse ridge anterior to marginal groove.

(h) postorbital. Slightly posterior and parallel to orbital margin.

(i) postrostral. Posterior to rostrum along dorsal midline.

(j) rostral. Continuous with lateral margin of rostrum.

(k) subhepatic. Extending posteriorly from branchiostegal spine.

(l) submedian. On either side of, and parallel to, postrostral carina, sometimes joining rostral carina.

(m) supraorbital. See gastroorbital carina [McLaughlin, 1980].