38 DB. W. T CALMAN ON A COLLECTION OF 



A single female specimen. The carapace is a little narrower than in Milne-Edwards's 

 figure, but in other respects the specimen agrees perfectly with this and with Alcock's 

 description. 



Locality. " Murray Island, reef." 



Distribution. Eed Sea to Fiji. 



Paramithrax (Chlorinoides) Coppingeri, Haswell. 



AcantJiopfirys acnJeatus, A. Milne-Edwards, Ann. Soc. Ent. France, (4) v. p. 140, pi. iv. fig. 4 (1865) 



(not Cliorimis aculeatua, M.-E. Hist. Nat. Crnst. i. p. 316). 

 Paramitlirax Coppingeri, Haswell. Proc. Linn. Soc. N. S. Wales, vi. p. 750 (1881) *; Haswell, Cat. 



Austr. Crust, p. 15. 

 Paramithrax (C/iloriiioides) Coppingeri, Miers, Rep. Voy. ' Alert/ p. 192. 

 Ctilorinoides Coppingeri, Miers, Rep. ' Challenger ' Brachyura, p. 53, pi. vii. fig. 3. 



A female specimen, about 6"5 mm. in total length, differs from Miers's figure and from 

 specimens in the British Museum in having the rostral spines short (about one-fourth 

 the length of carapace) and deflexed, and in having the supra-ocular hood deeply cut into 

 three spiniform teeth, the middle one being reflexed at the tip. Miers's figure shows it 

 as obscurely divided into two lobes, but Haswell's original description reads : " upper 

 orbital border with three straight, acute, spinous teeth." Only one spine is present 

 behind the double spines on the cardiac region, as in Miers's description and figure, but 

 a small tiibei'cle represents the second spine which Haswell describes. 



The shape of the supra-orbital border in our specimen is very like that shown in 

 Milne-Edwards's figvire of Acanthophrys aculeatus, which in other respects resembles 

 so closely Miers's figure of P. Coppingeri as to leave little room for the doubt which 

 Miers appears to have had as to the identity of the two species. Haswell's name for 

 the sj)ecies, however, still holds good, since that employed by Milne-Edwards is pre- 

 occujned by the next-mentioned species. 



Locality. " Torres Straits." 



Paramithrax (Chlorinoibes) acui,eatus (Milne-Edwards). 



Cliorinus aculeatus, Milne-Edwards, Hist. Nat. Crust, i. p. 316. 



Paramithrax {CIdorinoides) aculeatus, var. arinatus, Miers, Rep. Voy. 'Alert,' p. 193, ]}\. xviii. fig. A. 



Clilorinoidts aculeatus, Miers, Rep. ' Challenger ' Briichyura, p. 53 ; Henderson f, Tr. Linn. Soc., 



(2) Zool. V. p. 345 (1893). 

 Paramithrax {Ctilorinoides) aculeatus, Alcock, Jouru. Asiatic Soc. Bengal, l.xiv. (2) p. 241 (1895). 



A small female specimen appears to find its place among the variations of this species. 

 There are, as usual, five spines on the mid-dorsal line of the carapace, but the spine which 

 in the normal type occu2)ies the middle of the posterior margin appears to be wanting, 



* This reference is given wrongly by Miers in the ' Challenger ' Report. 



t Henderson's remarks on Miers's variety armatns are based on an oversight of the fact that the figure in 

 De Haan's great work, to which he refers, does not represent P. aculeatus, though so named on the plate, but 

 De Haan's species P. loiu/injiinus. 



