1916. | 5S. Kemp: Notes on Crustacea Decapoda. 399 
Latreutes anoplonyx, Kemp. 
1914. Latreutes anoplonyx, Kemp, Rec. Ind. Mus., X, p. 104, pl. 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. 
=e} 
in length, and is thus considerably smaller than the type. 
335 Bombay. H. P. le Mesurier. One. 
Sa7e-> Burma coast, 7-82 fms, ‘ Investigator.’ 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. unidentatus, Bate,' imperfectly described 
from a single specimen only 5°5 mm. in length obtained off Sam- 
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. unidentatus 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 Tozeuwma, Stimpson. 
Tozeuma armatum, Paulson. 
1914. ZYozeuma armatum, Kemp, Rec. Ind. Mus., X, p. 100. 
1914. Angasia avmata, Balss, Abhandl. math.-phys. Klasse Kk. Bayer. 
Akad. Wiss., Suppl. Bd. II, abh. to, p. 48. 
The additional specimens of this species, though a number of 
them are ovigerous females, are much smaller than those previ- 
cusly 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 
! Bate, Rep. Challenger Macrura, p. 584, pl. Ixxix, fig. 5. 
