Boone, Crustacea, Cruise of "Alva," 1931 97 



Color: Carapace violaceous brown with yellow markings on the 

 legs. 



Material examined : One specimen taken from coral, at Temukus 

 Roads, Bali, Dutch East Indies, October 25, 1931. 



Technical description : Carapace oval, 29 mm. long, 45 mm. wide, 

 with the frontal and anterolateral margins widely rounded; the 

 frontal margin is about one-fourth of the total width of the carapace, 

 deflexed, arched or bowed, divided by a median sinus which runs 

 back on the upper surface as a nearly closed suture and on the under 

 surface this suture extends to the interantennulary septum. The 

 anterolateral margin is rounded, crested, cut into four rounded, 

 laminate lobes, none of which is dentate, the posterior lobe only being 

 slightly protruberant. The orbital margin is only moderately tumid 

 and is marked by three sutures, two being on the outer half of the 

 upper margin and one at the lower, outer angle. The eyestalk is short, 

 bulbous, constricted below the cornea, which is small, set obliquely- 

 terminal. The regions and lobules of the carapace are well defined on 

 the anterior three-fourths of the caparace; the deep furrows that 

 separate them are filled with short bristles. The lobules are well de- 

 fined, with a somewhat flattened, semi-imbricate appearance; the sur- 

 face granulose, the outlines irregularly wavy. The posterior fourth 

 of the carapace is but little broken, except by the circumscribed in- 

 testinal region. The slopes on either side toward the posterior side- 

 walls are paved with low, flattish, circular granules the spaces be- 

 tween being filled with short bristles. This same design covers the 

 anterolateral sidewalls of the carapace. The male belt is five- jointed, 

 the third, fourth and fifth segments being fused. The anterior part 

 'of the sternal plastron is paved with low, rounded granules, inter- 

 spersed with short bristles. 



The chelipeds of the male are approximately equal; the merus 

 short, not extending beyond the carapace, and with the postlateral and 

 distal margins cristate ; the carpus is convex but with the upper and 

 outer surfaces set with rounded granules and rugae, the channels 

 separating these being rugged and filled with short, stiff setae. The 

 propodus is well developed, the palm almost as high as long, with the 

 external surface moderately tumid; the upper margin cristate, the 

 upper portion of the palm covered by coarse irregular rugosities with 

 small, rounded tubercles interspersed; the lower portion of the palm 

 paved with rounded granules which decrease in size toward the in- 



