New Product obtained by tl<< 



the moutb on each side On this account T have to change the 

 came. The original was sent to Cambridge, Mass. 



Rhinogobius contractu^ Poey. 



Tl: iea is to 1"' added to my Synopsis in the Report IT., 



I described it under the genus Chonophorus, in my 

 M norias, II.. p. Il'I. The transverse diameter of the head is 

 ■ ird smaller than in the /«'. buccidentus. 



Lcanthurns chirurgus, Bl. 



The couple of lines of description, which are given in my 

 Synopsis (Repert. II., 355), belong to the phlebotot/ius, as may 

 be seen repeated farther on. This species has a prolonged body, 

 vertical lines on the trunk', and oblique ones on the uprighl 

 6ns; the caudal a little forked. 



Echclus caudilimbatus, Poey. 



This Bpecies appears in my Synopsis (Repert. II., p. 424) 

 under the genus < ►phisoma, because the printer omitted to insert 



naiiie el' the genus Echelus (Raf.), to which it belongs. 



XXIV.— On a New Product obtained by tin Decomposition 



of '/'/•>. /,/,//■,/,, thylsulphonbromidi . 



Bi 0. L o i w . 



1 1 Trichlormetbylsulphonbromide * be heated in a sealed 



glass tube in an alcoholic solution for Beveral hours at LOO ('.. 



decomposition takes place, The contents of the tube will then 



considerable amount of sulphurous acid, and when mixed 



with water a heavy oil will be deposited; this being washed and 



►Id preparation of 1 1 1 jk body in the Am. J. Sci. for May, ' 



