368 On new Generic Names for some Entomostraca, 



COPEPODA. 



Halicyclops *, nov. nom. 



In 1893 Glaus instituted a genus Hemicyclops 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 Gopepoda 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 Amymone, Glaus, 

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

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

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

 employed by Savigny in 1817 for a genus of Annelids. 



Genus Dactylopusia, 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 Gopepods by Glaus in 1862 should be 

 changed. Type D. Stroemii (Baird). 



Glausidium, Kossman, 1874. 



This name must be employed instead of Herstlia, Philippi, 

 a name preoccupied by Savigny in Arachnida and by Dejean 

 in 1834 for a genus of Goleoptera. 



Genus Phyllothyreus I, nov. nom. 



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

 had been three times earlier employed. The type is PhyLlo~ 

 thureus 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 TcyaaTTjs for (rreyaaTTjs, like Ttyos for tTTtyot, one who covers up 

 {Steffastes already in use). 



X (f)ii'KXov, a leaf; 6vpf6s, an oblong shield. 



