368 On neto Generic Names for some Entomostraca. 



C P E P D A. 



Halicyclops *, nov. nom. 



In 1893 Claus instituted a genus Hemlcijdops with the type 

 Cyclops cequoreus, Fischer ; but the name had been previously 

 used in a different sense by Boeck in 1872. 



Genus EuTERPiNA, nov. nom. 



In 1873 Glaus employed the name Euterpe for a genus of 

 marine Copepoda with the type E. gracilis ; but that generic 

 name was preoccupied by Swainson (1831) among the 

 Lepidoptera. 



Genus Tegastes f, nov. nom. 



I propose this name as a substitute for AiJiymone, Claus, 

 1860, type A. satyrus, Claus, since Amymone was not only a 

 name given in 1785 to a larval form by O. F. Miiller, of 

 which Claus was aware when he instituted his genus, but was 

 employed by Savigny in 1817 for a genus of Annelids. 



Genus DactylopusiAj nov. nom. 



Dactylopus is in use for a genus of fishes thus named by 

 Gill in 1859, and therefore it is necessary that the same name 

 applied to a genus of Copepods by Claus in 1862 should be 

 changed. Type 1>. Strcem'ii (Baird). 



Clausidium, Kossman, 1874. 

 This name must be employed instead oi Hersilia, Phillppi, 

 a name preoccupied by Savigny in Arachnida and by Dojcan 

 in 1834 for a genus of Coleoptera. 



Genus Phyllothyreus :f , nov. nom. 

 Instead of Phyllophora, H. Milne-Edwards, a name which 

 had been three times earlier employed. The type is Fhyllo- 

 ikureus cornutus (H. Milne-Edwards). I may take this 

 opportunity of announcing this interesting species as a member 

 of the British fauna. It has been known to me for more than 

 forty years. It was sent to me by William Laughrin at a 



* aXs, the sea. 



t Teyaa-TTjs for areyaa-rris, like reyos for oreyos, one who covers up 

 {Stegastes already in use). 



X (pvXkov, a leaf; 6vpe6s, an oUoug sliield. 



