igii.] S. Kemp : Note's on Decapod a, II. 9 



According to my own observations, P. spinosiis (Iveach), 

 norvegicus (M. Sars), brevirostris, Smith, gracilis, vSmith and abyssi , 

 Alcock/ agree in possessing the characters of Pontophihts as here 

 defined, while P. echinulaius (M. Sars), irispinosus (Hailstone), 

 bispinosus (Hailstone and Westwood) and obliqwus, Fulton and 

 Grant, are equally typical representatives^ of Philochcras. 



P. sabseclioia, sp. no v., resembles P/»7of/imrs, except that the 

 endopod of the pleopods is long, only a trifle shorter than the 

 exopod (fig. 13). 



Dr. Caiman has kindl}" supplied me with the following informa- 

 tion concerning the type of vSpence Bate's Crangoii internicdius ,^ 

 which was found on the coast of S. Australia. The lateral 

 process of the basal joint of the antennular peduncle terminates 

 in a small point at its antero-external angle. There is no exopod 

 at the base of the first pair of peraeopods ; the second pair reaches 

 to the end of the carpus of the first, and the dactylus is more than 

 half the length of the propodus. The endopod of the last four 

 pairs of pleopods does not exceed half the length of the exopod, 

 and does not possess an appendix interna. 



From this it will be seen that the species is closely allied to 

 typical examples of Philoclicras ; it differs from them only in the 

 shape of the basal process of the antennule, and also, if vSpence 

 Bate's figure is correct, in the form of the chela of the second 

 peraeopods. 



In the two New Zealand species, P. aiistralis (Thomson) and 

 P. chiltoni, sp. nov., the basal process of the antennular peduncle 

 is sharply pointed anteriorly. There is no exopod on the first pair 

 of peraeopods. The second pair is slender (fig. 9), and reaches to the 

 end of the carpus of the first pair; the palm is of moderate length, 

 but shorter than the fingers, and the latter are only very slightl}^ 

 curved internally. The endopod of the last pair of pleopods is 

 scarceh' half the length of the exopod, and bears a very small 

 appendix interna (fig. 4), which is quite rudimentary on the fourth 

 pair and entirely absent from the fifth. 



These two species appear to be exactly intermediate in 

 character between the typical examples of Pontophilus and Philo- 

 chcras occurring in European waters. 



P. victoricnsis, Fulton and Grant,* resembles the New Zealand 

 species in most of the characters just mentioned, but the palm of 



1 Alcock's statement (Desc. Cat. Indian Deep-sea Macrura, 1901, p. 114) that 

 ao exopod exists at the base of the first peraeopods in P. gracilis and abyssi is, I 

 think, due to an oversight. 



5 1 have not at hand any examples of P. fasciahis (Bell); the characters of 

 this species are, I believe, quite typical of Philocheras. 



3 Crangon intermedins , Spence Bate (nee Stimpson), Proc. Zool. Soc. London, 

 1863, p, 503, pi. xli, fig. 6 = Crangon baiei, Kingsley, noin. nov.. Bull. Essex Inst., 

 xiv, 1882, p. 129. 



4 Fulton and Grant, Proc. Roy. Soc. Victoria (n.s.), xv, p. 65, pi. x, fig. 2. 



