GLOSSOBIUS A SYNONYM OF CERATOTHOA 353 



Olencira, Leach, 1818, has but one species, but that the 

 remarkable Olencira prcegustator (Latrobe) of America, in 

 which the first six pairs of feet from before backwards are 

 successively and gradually longer, but the seventh pair 

 abruptly much so. 



vEgathoa, Dana, 1852, is not mentioned by Schiodfceand 

 Meinert. The definition, Mr. Harger says, is : — ' Body 

 elongate oval ; pleon not suddenly narrower than the 

 thorax ; head large, subtriangular ; eyes large ; legs nearly 

 alike throughout, with strong curved dactyli ; epimera of 

 moderate size or small ; pleon long and large, composed of 

 six distinct segments ; pleopoda not ciliated ; uropods more 

 or less distinctly ciliated, rami subequal.' Mr. Harger 

 remarks that the large granulated eyes remind one of JEga, 

 and that the ciliated uropods also indicate the approxima- 

 tion of this genus to the preceding family. The ciliation 

 is, however, nearly rudimentary in the New England species, 

 JEgaihoa loliginea, Harger. 



Lohothorax, Bleeker, 1857, is distinguished by the 

 strong dorsal carination along the first four segments of 

 the peraeon, and the deep sinuation in the centre of their 

 hinder margin. The species are LobotJwrax typtis, Bleeker, 

 from Batavia, and Lobothorax aurltus, (Schiodte and 

 Meinert) from the Philippines. From what must be con- 

 sidered a fanciful objection to the formation of the name 

 Lobothorax, the latter authors thought proper to change it 

 into Saophra, which they made the leading genus of their 

 family Saophridse. 



[Glossobius], Schiodte and Meinert, 1883, is notable for 

 the great disparity in size between the male and female. 

 Of Glossobius linearis (Dana) the two often quoted authors 

 give five descriptions relating to the adult male and female 

 and to three stages of the young. The ovigerous female 

 attains a length of an inch and a half, while the adult male is 

 content with about two-fifths of an inch at the largest. The 

 generic name signifies ' tongue-life,' and the species men- 

 tioned infests several kinds of flying-fish in a way that jus- 

 tifies the name. ' The female embraces the fish's tongue, 

 perforating i^s lower conjunctive membrane with the very 



