CETTSIACEA. 257 



without locality, and being also of very small size, I was imeer- 

 tain whether to regard them as belonging at aU to this genus, and 

 if so, whether they might not represent an immature condition of 

 one of the known species. This, I am inclined to think, cannot be 

 possible, since there are one or two Matutce in the collection no 

 larger than M. inermis, ia which nevertheless the lateral spines are 

 distinctly developed and the carapace of the normal width. In 

 the obsolescence of the lateral spines M. inermis resembles the genus 

 Oryptosoma ; but in the form of the chelipedes and of the dactyli of 

 the swimming-legs and in the mouth-organs it is altogether a Matuta. 



113, Calappa hepatica {Linn.). 



An adult male was obtained near Clairmont on a coral-reef 

 (ISTo, 151). 



Specimens are in the British-Museum collection from the following 

 Australian localities : — Trinity Bay, N.E. Australia (/. Macgillivray, 

 H.M.S. ' Eattlesnake '), also from Bramble Key and West HUl (J". 

 B. Juhes). Hess records it from Sydney. 



I have already * referred to the extended geographical range of 

 this common species, which is more generally known by Fabricius's 

 designation C. tuherculata. 



114. Dorippe dorsipes. 



Cancer dorsipes, Idnn. Mus. Lud, Ulricce, p. 452 (1764) ; Syst. Nat. 



ed. xii. p. 1053 (1766), not of Rumphius, Fahricius, or Herbst. 

 Cancer frasoone, Herbst, Naturg. Krabben etc. i. p. 192, pi. xi. fig. 70 



(1790). 

 ? Cancer quadridens, Fabridus, Ent. Syst. ii. p. 464 (1793). 

 Dorippe quadridens, Fabr. Ent. Syst. Suppl. p. 361 (1798) ; De Haan, 



Faun. Japan., Orust. p. 121, pi. xxxi. fig. 3 (1841) ; White, List 



Cr. Brit. Mus. p. 54 (1847) ; Stimpson, Pr. Ac. Nat. Sci. Phil. 



p. 163 (1858). 

 Dorippe atropos and D. nodulosa, Lamarck, Syst. Anim. sans Vert. 



V. p. 245 (1818). 

 Dorippe quadrideritata, M.-Edw. Hist. Nat. Crust, ii. p. 157 (1837) ; 



Hilgendorf, Monatsh. Ahad. Wissensck. Berlin, p. 812 (1878) ; Has- 



well. Cat. Austr. Crust, p. 137 (1882). 



To this species are referred a male from Port MoUe, 14 fms. (No. 

 93) ; another from- Port Denison, 4 fms. ■ a female from Flinders, 

 Clairmont, N.E. Australia, 11 fms. ; and a small male in very im- 

 perfect condition from Thursday Island, 4-6 fms. (No. 130), in 

 which the carapace is narrower than usual. All of the above from the 

 first collection. In the second collection, three small specimens from 

 the Arafura Sea, 32-36 fms. (No. 160), probably belong here. 

 Another very small example from Friday Island, 10 fms. (No. 153), 

 which has the carapace glabrous, but tuberculateA nearly as in JD, 

 dorsipes, I cannot assign with certainty to any species. 



* PhU. Trans. clxTiii. p. 491 (1879). 



