CEYLON ALPHEID 2. 171 
The following is a list of the species described in the present 
report :— 
Synalpheus neomeris, var. streptodactylus, Coutiere. 
Synalpheus graviert, Coutiére. 
Synalpheus biunguiculatus, var. exilipes, Coutiére. 
Synalpheus tumido-manus, Paulson. 
Alpheus ventrosus, H. M.-Edwards. 
Alpheus phrygianus, Coutiére. 
Alpheus bucephalus, Coutiére. 
Alpheus aculeipes, Coutiére. 
Alpheus frontalis, H. M.-Edwards. 
Alpheus rapax, Spence Bate. 
Alpheus bis-incisus, de Haan. 
Alpheus audowint, Coutiére. 
Alpheus strenuus, Dana. 
The following table gives a list of Alpheids which have been 
described from Ceylon up to the present :— 
Herdman’s Colombo 
Collection. Museum. General Distribution. 


Synalpheus neomeris Baty ey .. Indo-Pacific, Australia 
var. streptodactylus .. .. ™&  .. Maldives, Ceylon 
Syn. graviert .. a2 & lt X &.' 6 Maldives; Ceylon 
Syn. biunguiculatus Bot Weyer ray .. Indo-Pacific 
var. exilipes a .. ™&  .. Maldives, Ceylon 
Syn. laticeps .. Tae es .. Maldives, Ceylon 
Syn. tumido-manus 4! -. ™%  .. Red Sea, Indian Ocean 
Syn. comatulorum me Indo-Pacific, Australia 
Syn. carinatus. . x Indian Ocean 
Alpheus ventrosus x x Indo-Pacific, Australia 
A. idiocheles x Maldives, Ceylon 
A. phrygianus. . Bae ON eee ON Ge. ue MaIGLVes.: Coylorm 
A, bucephalus . . a -. ™&  .. Indian Ocean 
A. aculeipes x Maldives, Ceylon 
A. paraculeipes x Maldives, Ceylon 
A, paralcyone . . Ai Ghee tae .. Maldives, Ceylon 
A. frontalis .. a ve. 073% Indian’ Ocean 
A. mers Soy ames .. Indo-Pacific 
A. rapax ve pa wow «. 1. ndo-Pacitic 
A. pareuchirus Xx Maldives, Ceylon 
A. bis-incisus .. Xx Xx Indo-Pacific 
A. audowint x Xx Indo-Pacific 
A, strenuus Se nt Oe | om, Lndo-Pagific 
A. macrodactylus sae eA ays .. Australia, Ceylon 
A. spongiarum x Maldives, Ceylon 
It is not surprising to find that of the twenty-five species and 
varieties of the Alpheidz obtained from Ceylon, only three species 
have not also been found in the Maldives, as one naturally expects 
the Maldivian crustacean fauna to be similar to that of Ceylon. 
Coutiére has described sixty-six species and varieties of Alpheids 
from the Maldives, and there is every reason to believe that when 
the Ceylon fauna has been thoroughly investigated a large number 
of species will be added to the present list of Ceylon Alpheids. 
