364 Records of the Indian Miisenin. [Vol. XII, 



The outer uropod is a little shorter than the inner and bears 

 long setae on its outer, as well as on its inner margin; it is a little 

 more than three times as long as broad. The telson reaches about 

 to the apex of the inner uropod ; it is deeply sulcate above with 

 two pairs of dorso-lateral spinules and in the form of its apex. 

 resembles P. incisus. 



This species is, I believe, the smallest known Macruran. It is 

 smaller even than P. sahsechota, Kemp, the largest individual in 

 the collection, an ovigerous female, being slightly less than 7" 5 

 mm. in total length. The eggs are comparatively large for such 

 a small species; when not eyed and to all appearances freshly 

 extruded they are about 0*3 4X0*27 mm. in longer and shorter 

 diameter; when fully eyed and ready to hatch they measure about 

 0-48 X 0*36 mm. 



Pontophilus lowisi is perhaps distantly related to P. hidentatus , 

 de Haan ', and P. japonicus, Doflein*, but from both these species 

 it differs conspicuous!}' in the form of the carapace and in the 

 presence of a series of spines on the outer edge of the antennal 

 scale. 



The colouring of the species differed considerably in specimens 

 from different localities. Individuals found on a muddy bottom 

 were for the most part densely pigmented with grey and brown, t^'e 

 last abdominal somite and tail-fan being colourless except for a dark 

 transverse band on the latter. Specimens from sandy ground were 

 much lighter in colour, often quite pale and sometimes with one or 

 two transverse brown bands. In one example from this type of 

 bottom the pigmentation is very peculiar, the carapace being deep 

 amber brown, the abdomen white with transverse bars of brown 

 on the fifth somite and tail-fan and the antennules bright red. 



"'""10"'^'" Port Blair, Andamans, 3-12 im.s. S. Kemp. 69, 4'5-7'5 mm. 



Specimens were found off' Ross I. and in various other parts 

 of the harbour, but were most abundant at the inner end on a 

 muddy bottom. The types of the species are numbered 9074/10 

 in the Indian Museum register. 



With this species I have associated the name of Mr, R. F. 

 Lowis, Deputy Superintendent of Port Blair, to whom I am much 

 indebted for assistance during my visit to the Andamans. 



Pontophilus sabscchota, Kemp. 



191 1. Foiitopliil Ks sabsecliotd. Kemp, AVr. ///</. }fiis., \'I, |). (), ])1. ii, fig.s. 11-14. 



A male from Port Blair, only 8 mm. in length, agrees in most 

 particulars with the type, a female. The distal margin of the 



1 l)e Haan, in Siebold's Fauna Japonica, p, 183, pi, xlv, fief, 14 (1849) and 

 lialss, Ablia)idl. inath.-pliys. Klasse K. Baver. AkacL ll'iss. Miunlicii. Suppl. 

 Bd. II, p. 68, text-fig. 41 (1914). 



2 Doflein, ^IbluDidl. niath.-pliys. Klasse K. Baver. Akad . Wiss. Mi'oiclu'u. 

 .\XI. p. (iji, |)1. iii, fig. 6, and text -fig. p. 622 (1902). 



