Boone, Crustacea, Cruises of "Ara" and "Alva" 225 



on the finger. The fingers are slender, fluted, set with triangular 

 teeth along the cutting edges. 



The ambulatory legs are smooth, slender ; the first and second 

 pairs each have a subdistal spinule on the posterior margin of the 

 carpal joint. 



The Hawaiian specimens measure : Male, 55 millimeters long, 

 130 millimeters wide with lateral spines included; cheliped, 162 

 millimeters long. Female, 55 millimeters long, 128 millimeters 

 wide ; cheliped, 142 millimeters long. 



References : Cayicer sanguinolentus, Herbst, J. F. W., Naturg. 

 Krabben und Krebse, 1792, Bd. I, pt. II, p. 161, pi. 8, figs. 

 56-57. 



Neptunus sanguinolentus, Alcock, A., Journ. Asiatic Soc. Ben- 

 gal, 1899 (1900), vol. LXVIII, pt. 2, Nat. Hist, No. 1, p. 32 

 (with extensive sjmonymy) . 



Neptunus tuberculosus A. Milne Edwards 



■f 



Plates 84 and 85 



Type: The type was taken in the Sandwich Islands and is 

 deposited in the Museum d'Histoire Naturelle, Paris. 



Distribution: This species appears to be rather sparsely 

 represented in collections, there being less than half a dozen pub- 

 lished records of it. In addition to the type from the Sandwich 

 Islands, it has been reported by the "Challenger" from Arrow 

 Island; from the Gulf of Martaban (Henderson) and from the 

 Andamans, off Ceylon, 28 fathoms, and the Persian Gulf (Al- 

 cock) ; to these the "Ara" specimens add Aden. 



Material examined : Two very large females, taken at Aden, 

 Amha, Arabian Sea, March 7, 1929, by the "Ara" World Cruise. 



Technical description : The larger of the two females taken 

 measures: carapace, 68 millimeters long, and 148 millimeters 

 wide, with the lateral spines included; cheliped, 170 millimeters 

 long. This specimen is shown in plates 84 and 85. It is in the 

 process of ecdysis with the old carapace loosened along the pos- 

 terior margin and the soft tissue of the new carapace visible. The 



