1880. J 



NATURAL SCIENCES OF PHILADELPHIA. 



35 



Genus DILOCAECINUS. 



Dilocaremus pardalinus Gerstsecker, Archiv fiir Naturgeschichte xxii, 

 p. 148, 1856. 



Gerstaecker gives doubtfully South America as the habitat of 

 this species. There are specimens with the label " ? Upper 

 Amazon, Dr. Wilson." 



Dilocarciaus spinifrons, nov. 



Carapax regularly arcuate, regions obsolete, sides arcuate, armed 

 with four spines besides the spiniform angle of the orbit ; the 

 margins of the spines finely serrate. Superior margin of the orbit 

 obscurely crenulate, inferior denticulate with a strong spine near 

 the interior angle. Front advanced, with about fourteen spines. 

 A spine at the anterolateral angles of the buccal area. Chelipeds 

 sub-equal, meros with two spines at about the middle of the pos- 

 terior margin and a single one on the anterior margin at about 

 the middle, and one on the distal portion of the upper margin ; 

 the spine on the interior surface of the corpus long, slender, acute. 

 Hand with an acute spine above at the articulation of the dactylus, 

 fingers with the denticulations fine but acute. Ambulatory feet 

 less dilated than is usual in this genus. The spined front readily 

 separates this from all other species. 



Upper Amazon, Dr. T. B. Wilson. 



Genus THELPHUSA (including Geothelphusa Stm.) 



Of this genus forty -five species have been described. The 

 localities from which I have examined specimens are marked with 

 an exclamation point (!). 



africana A. M.-Edw. West Africa, 



anchietae Capello. West Africa, 



andersoniana Wood-Mason. Burmah. 

 anfustifrons A. M.-Edw. Australia, 

 aubryi M.-Edw. 



West Coast Africa (!) ; Natal (!). 



aurantia Ilerklots. 



pelii Herklots. 

 atkinsoniana Wood-Mason. 



Northern India, 

 aasteniana Wood-Mason. India, 



bayonioa Capello. West Africa. 



bayonica var. a, Capello. West Africa. 

 berardi Savigny. 



Egypt, Nile (!); Red Sea. 

 ehilensis (Heller) A. M.-Edw. Chili, 



corrugata Heller, 

 crassa A. M.-Edw. 

 oristata A. M.-Edw. 

 dehaani White. 



berardi DeHaan. 



japonica Herklots. 

 denticulata M.-Edw. 

 depressa Krauss. 

 difformis M.-Edw. 

 edwardsii Wood-Mason 

 flaviatilis (Bosc.) Latr. Mediterranean 



Region, Greece (!), Gaarda Sea (!), 



(Museum Peabody Academy). 

 grapBoides White. Manilla. 



? siibqnadrata Gerst. 

 gondoti M.-Edw. Madagascar, 



Madras, Java. 



Australia. 



East Indies(!). 



Japan. 



China, 



Port Natal. 



Red Sea. 



Burmah. 



