I9I4-] S. Kemp : Notes on Crustacea Decapoda. 91 



large males of this species, but from Mier's figure (1874, ^oc. cit.) 

 it is evident that this is sometimes a conspicuous feature. 



"10- New Zealand. Canterbury Mug. exch. One, ^^y mm. 



Alope palpalis appears to be restricted to the coasts of New 

 Zealand and the neighbouring islands, the records of its occurrence 

 in Australian waters refer to the following species. 



Alopc australis, Baker. 

 (Plate I, figs. 3-5.) 



1882. Alope palpalis, Haswell, Cat. Australian Crust., p. ig,:;. 



1898. Alope palpalis, Stead, Zoologist (4), II, p. 211. 



1904. Alope australis, Baker, Trans. Roy. Soc. S. Australia, XXVIII, 



p. 154, pi. XXX, figs. 1-7. 

 1909. Alope australis, MtCuUoch, Rec. Australian Mus., \'II, p. 313, 



text -fig. I. 



The chief distinctions between this species and A. palpalis, 

 White, are as follows : — 



A. australis. \ A. palpalis. 



Rostrum not reaching as far Rostrum reaching as far for- 



forwards as basal segment of ; wards as basal segment of an- 



antennular peduncle. tennular peduncle. 



Supra-orbital spines scarcely | Supra-orbital spines reaching 



reaching beyond base of eye- \ to tips of eyes, 

 stalks. 



I^ateral process of basal seg- Lateral process of basal seg- 

 ment of antennular peduncle ex- ment of antennular peduncle 

 tending little, if at all, beyond ! extending far in advance of 

 end of segment. basal segment. 



Mandible without incisor-pro- Mandible with incisor-pro- 

 cess. [ cess. 



The five Burmese specimens examined differ from Baker's 

 description and figures in a few particulars. The antennular 

 peduncle reaches beyond the middle of the antennal scale, the 

 second segment is longer than the third and is longer than broad ; 

 the lateral process of the basal segment extends at most to the 

 distal end of the segment, usually faUing far short of it (fig. 3). 



Baker states that A. australis differs from A. palpalis " in the 

 less divided state of the second pereiopods— except the carpus" 

 and in his figure the merus and ischium of this limb are not 

 segmented. In four of the Indian examples the ischium and 

 merus of this pair are each divided into two segments, while the 

 carpus is composed of seven. In the fifth specimen, a large 

 male, the left leg is similarly segmented, but the right, which is 

 abnormally short, shows traces of subdivision into two and three 

 segments in the ischium and merus and the carpus consists of ten 

 segments, two of these, however, being only feeblv indicated 

 (fig. 4). 



