166 Bulletin Vanderhilt Marine Museum, Vol. V 



Genus: TRAPEZIA Latreille. 

 Trapezia rufopunctata (Herbst), 



Plate 86. 



Type: The type locality of this species was unknown to Herbst; 

 the type is deposited in the Berlin Museum. 



Distribution: Red Sea (Heller) ; Djeddah, Red Sea, (Lucas; de 

 Man) ; Dar-es-Salaam, Ras Ndege, (Ortmann) ; Andamans, Nicobars 

 and Ceylon, (Alcoek) ; Tuticorin, Ceylon, (Henderson) ; Jokkenpiddi 

 Paar, Gulf of Manaar, (Laurie) ; Maldives: Male, Fadifolu, atolls, 19 

 fms., South Nilander, lagoon, (Borradaile) ; Edam Island and Riffs, 

 Java, Malay Archipelago, (de Man) ; Amboina, (Ortmann; Zehntner) ; 

 Marquesas Islands, (de Man; Lucas; Gerstaecker) ; Raiatea Island, 

 Society Islands, (Boone) ; Paumotu, reefs, Ellice Islands, (Rathbun) ; 

 Hawaii, (A. M. Edwards; Rathbun) ; Palmyra Island, (Edmondson) ; 

 Upolo, Samoa, (Ortmann) ; Secora Isle, off the west coast of tropical 

 America, (A. M. Edwards) ; Africa : coast of Zanzibar, (Lucas ; A. M. 

 Edwards) ; East and South Africa, (Gerstaecker) ; Madagascar, New 

 Caledonia, (A. M. Edwards) ; Grand Port, Mauritius, (Bouvier) ; Eg- 

 mont, lagoon, Seychelles, (Rathbun). 



Material examined: One large male, taken in coral, at Teviatoa 

 Reef, Raiatea Island, Society Islands, south Pacific Ocean, August 21, 

 1931. 



Color : The ground color of this species is creamy -yellowish, every- 

 where abundantly covered with large, roundish crimson spots. 



Technical description : This species differs from T. cymodoce in 

 the following characters : T. rufop^mctata has the carapace of about 

 the same proportions, but the interorbital margin is distinctly more 

 prominent, with the inner, or submedian pair of teeth each a long tri- 

 angle with the separating incisions more angular, the outer pair of 

 frontal teeth very triangular, with their apices extending as far for- 

 ward as do the median teeth; the preorbital angle also has its inner 

 border definitely oblique, a slight subdistal angulation; the outer 

 border of the preorbital tooth is rounded. The inferior inner orbital 

 tooth is very acute and long. The postorbital tooth is very acute with 

 a distinct outward flare. 



In the present specimen the epibranchial spine on the right side is 

 acute, as in cymodoce, but on the left side is blunted as in ferruginea, 

 the variation in the one specimen showing the unimportance of this 

 character as a specific valuation. 



