1916.] S. Kemp : Notes on Crustacea Dec a pod a. 399 



Latreutes anoplonyx, Kemp. 



1914. Latreutes anoplonyx, Kemp, Rec. Ind. Miis.. X, p. 11)4, pi. iv, 

 figs- 3-5- 



Numerous additional specimens of this species have recently 

 been obtained by the ' Investigator ' off the Burma coast ; they 

 agree closely with the type. The rostrum is rather unusually con- 

 stant in form, being always narrowly triangular in shape and 

 extending, in all except extremely young specimens, well beyond 

 the apex of the antennal scale. The dorsal margin is, however, 

 straight in some examples, markedly concave in others. The 

 number of teeth is variable ; there are from 7 to 15 on the upper 

 margin and from 6 to 11 on the lower. As was pointed out in the 

 original description, L. anoplonyx differs from all other Indian 

 species of the genus in that the dactyli of the last three legs are 

 unarmed except for a few microscopic spinules. 



The largest individual, an ovigerous female, is only 28 mm. 

 in length, and is thus considerably smaller than the type. 



335 Bombay. H. P. le Mesurier. One. 



^'^W '^ Burma coast, 7-8-^- fms, ' Investio-ator.' Many. 



The only other known example was found at Bombay. 



When describing this species I remarked that its nearest ally 

 appeared to be Ortmann's L. laminirostris. It is perhaps at least 

 as nearly related to L. imidentatus , Bate,^ imperfectly described 

 from a single specimen only 5-5 mm. in length obtained off Sara- 

 boangan in the Philippine Is. Very young examples of L. ano- 

 plonyx do not differ greatly from Bate's figure; but in the descrip- 

 tion it is stated that the last three legs agree with those of L. planus 

 in which, according to the figure, the dactylus is biunguiculate. 

 Neither L. planus nor L. imidentatus have been recognised since 

 they were first described and it seems likely that their identifica- 

 tion will remain uncertain until the Hippolytid fauna of the Philip- 

 pine Is. is investigated in detail ; it is not even certain that they 

 are correctly referred to the genus Latreutes. 



Genus Tozeuma, Stimpson. 

 Tozeuma armatum, Paulson. 



1914. Tozeii»ia arniatKm, Kemp, Rec. Ind. Mus., X, p. 106. 

 1914. Aiigo.sia. armatn, Balss, Ahhandl. math.-phys. Klasse K. Baycv. 

 Akad. Wiss., Suppl. Bd. II, abh. 10, p. 48. 



The additional specimens of this species, though a number of 

 them are ovigerous females, are much smaller than those previ- 

 ously recorded from the Indian coast, a feature correlated perhaps 

 with the shallower water in which they were obtained. The lar- 

 gest individual is only 43 mm. in length. 



The number of teeth on the lower margin of the rostrum is 

 variable and in one example is as high as 39. This specimen, 

 obtained by Mr. Hornell in S. India, also possesses the additional 



i Bate, Rep. Cliallenger Macrura, p. 5S4, pi. Ixxix, Hg. 5. 



