140 AUSTBALIAN MAIiACOSTBACA. 



266. Dromia excavata. A.M. 



Drotnidia excavata, Stimpson, Proc. Acad. Nat. Sci. Phil., x., 

 sp. 277. 



Carapace as broad as long, regularly convex ; surface covered 

 with minute pores and covered with coarse hairs. Front strongly 

 deflexed in the middle, mesial tooth triangular, acute, directed 

 downwards, barely visible when the carapace is viewed from 

 above ; lateral teeth conical, sub-acute. A small tooth in the 

 middle of the upper orbital margin ; external orbital tooth small ; 

 infra-orbital tooth well developed ; one or two granules near the 

 latter on the sub-hepatic region. Sub-hepatic regions deeply 

 concave, producing a concavity in the anterior portion of the 

 antero-lateral boundary of the carapace when viewed from above, 

 bounded behind by a conical tooth, behind which again the 

 border is convex and entire as far as the cervical groove ; postero- 

 lateral border short. Chelipedes not nodose, a conical tooth at 

 the internal and distal angle of the carpus ; fingers strongly 

 toothed. Length f inch. 



Port Stephens, about five fathoms ; Port Jackson. 



The nearest ally of this species seems to be the D. globosa of 

 Lamarck; it is distinguished from it by the absence of the 

 tooth on the lateral border in front of the cervical groove. 



267. Dromia ootodentata. 



Dromia ootodentata, Haswell, 1. c. 



Carapace broader than long, evenly convex, shining, ornamented 

 with numerous minute pores. Frontal teeth sub-equal, conical, 

 the middle one directed downwards, a conical tooth about the 

 middle of the upper orbital margin ; infra-orbital tooth rather 

 prominent. Antero-lateral border with four small conical teeth, 

 the first separated by a short interval from the external orbital 

 angle, and by a nearly equal distance from the second, third 

 small, separated from the second by about twice the distance 

 which separates the first two ; fourth larger than the third, 

 separated from it by an interval similar to that between the first 

 and second ; a little in front of the third tooth is a low rounded 

 tubercle. An acute tooth immediately behind the cervical 

 suture. An acute tooth at the distal end of the upper border 



