South African Crustacea. 



267 



FAMILY SCYLLARIDAE. 



GEN. THENUS, Leach, 1815. 

 THENUS ORIENTALIS (Lund.), 1793. 



See these Annals, vol. 15, pp. 61-65, in which the position of this 

 species has been fully discussed. A very small specimen has been 

 taken, in which the length of the carapace in the middle Hue is slightly 

 less than 8 mm., and the greatest breadth between the external teeth 

 of the orbits is 8 '5 mm. In this specimen the eyes are a little 

 withdrawn from the outer margins of the carapace. 



Locality. Duruford Point, N.E. by E. 9 miles. Depth 13 fathoms. 



INDEX. 



Achelous 



aequabilis (Clibanarius) 



affinis (Eucrate) . 



alcocki (Latreillopsis), pi. civ 



alcocki (Platymaia) 



anomala (Brachyura) . 



anomala (Macrura) 



areolatus (Ghlorodopsis) 



artificiosus (Conchoecetes) . 



Axiidae ..... 



Axius ..... 



barnardi (Lithadia), pi. ci . 

 bituberculatus (Eudromia), pi. ciii 254 

 Blastidge . 

 Brachyura anomala 

 Brachyura genuina 



Calcinus .... 

 Carpilius .... 

 Catometopa .... 

 Charybdis .... 

 Chlorodopsis .... 

 Cleistostoma 



Clibanarius .... 

 Clythrocerus 



