160 " THETIS " SCIENTIFIC RESULTS. 



Familij GRAPSID^. 



Subfamily GRAPSIN^. 



G R A P S U S, Lamarck. 



GRAPSUS VARIEGATUS, Fabricius. 



Grapsus variegatus (Fabr.), H. Milne-Edwards, Hist. Nat. Crust., 

 ii., 1837,' p. 87. 



One specimen of this extremely common shore crab was obtained 

 at Port Stephens. 



OXYSTOMATA or LEUCOSIIDEA. 

 Family CALAPPID^. 



Subfamihj CALAPPIN^. 

 M U R S I A, Desmarest.- 



MURSIA ARMATA, De Haan. 



Mursia armata, De Haan, Fauna Jap., Crust., 1839, p. 73, pi. xix., 



' f. 2. 

 Mursia curtispina, Miers, Chall. P^ep., Zool., xvii., 1886, p. 291, 

 pi. xxiv , fig. 2. 



Stations 35, 41. 



A male and a female of this species are in the collection. 



The examples agree with Miers' description and figure in every 

 character except two. 



The lateral spines on the carapace are a little longer and are 

 .somewhat obliquely directed backwards, not straight as they 

 are represented in both of the figures quoted above. The sub- 

 orbital lobe or tooth is triangular in outline, and acute— not 

 broad near the summit and thence suddenly narrowed to a sub- 

 acute point, as it is depicted by Miers in figure 2a. 



