Boone, Crustacea, Cruise of ''Alva," 1931 125 



most of these being oval or subcircular in contour. The largest lobules 

 of the series are the four found in transverse series on the mesogastric 

 region. The front is vertically deflexed, cut into four lobes, the inner 

 or submedian pair of which are the wider, the outer pair being formed 

 by the supraorbital border. There are four shallow lobes along the 

 anterolateral margin, separated by grooves which are continued on the 

 under side of the carapace. In addition to these furrows the under 

 surface is granulose and very setose. The external maxillipeds, sternal 

 plate and abominal belt are also very setose. The male belt is narrow. 



The chelipeds are equal, and have only the tip of the merus extend- 

 ing beyond the carapace ; this distal portion of the carapace, the upper 

 surfaces of the carpus and propodus are covered with pearly granules 

 like those of the carapace ; those on the carpus and upper half of the 

 propodus form lobules, while on the lower half of the palm they tend 

 to form longitudinal rows ; the fingers are also covered with granules 

 and bristles on the proximal two-thirds of their length and in addition 

 are each longitudinally grooved on the distal portion. The fingers are 

 short, slightly down-curved with pointed tips (not spoon-shaped), 

 meeting along the full length of their dentate cutting edges. 



The ambulatories are short, with the meral, carpal and propodal 

 joints wide and having their dorsal surfaces covered with granules 

 and bristles like those of the carapace the granules in some instances 

 forming faintly defined lobules. The dactyl is stout, subcylindrical, 

 with a curved horny tip and with all surfaces granulose and setose. 



References: Xantho hirsutissimus Ruppell, Beschreib. Abbild. 24 

 Krabben Roth. Meer., p. 26, pi. 5, fig. 6, 1830.— H. M. Edwards, 

 Hist. Nat. Crust., t. I, p. 389, 1834. 



Actaea hirsutissima De Haan, Fauna Japon. Crust., p. 18, 1833-50. — 

 Dana, U. S. Explor. Exped., vol. XIII, Crust, pt. 1, p. 164, 1852.— 

 Heller, Sitzb. Akad. Wien., vol. 43, p. 314, 1861. — Reise der 

 Osterreich. Fregatte "Novara" Zool., Bd. II, Abth. Ill, Crust., p. 

 9, 1860. — A. Milne Edwards, Nouv. Arch. Mus. Hist. Nat. Paris, 

 t. I, ser. 2, p. 263, 1865; Ihid., t. IX, p. 191, 1873.— Kossman, 

 Reise Roth. Meer. Crust., p. 23, 1877.— Tozzetti, T., Magenta 

 Crost. p. 37, pi. 3, fig. 26, 1877.— Richters, in Mobius Beitrage 

 zur Meeresfaun. Maurit. und Seychelles, pt. Ill, Decapoda, p. 145, 

 1880.— de Man, Notes Leyden Mus., vol. II, p. 173, 1880; ihid., 

 vol. Ill, p. 96, 1881.— Cano, Boll. Soc. Nat. Napoli, vol. Ill, p. 189, 

 1889.— Ortmann, Zool. Jahrb. Syst. p. 453, 1893-94.— Alcock, 



