'Revision of the Nomenclature of the Brachyn.ra. 157 



genus, making C. nlger the t3'i)e, and this meaning has clung to 

 it to the })resent day. In restoring Clorodius to its original status, 

 it becomes a synonym of Atelecydus Leach, 1814. Chlorodiella, 

 nov., is proposed for Chlorodias Milne Edwards. 



Stenocionops Leach, MS., while not adopted by Desmarest, 1823, 

 was said to include Mala taurus Lamarck, 1818, which is s3aion3^- 

 mouswith Ca.ncer cornudo Herbst, 1804,* and C. f ur cat as OYixier, 

 1791. Later, in 1825, the generic name was transferred by La- 

 treille to the species cervicornis Herbst, 1803, which has ever since 

 been regarded as the type. In its rightful meaning, Stenocionops 

 takes the place of Perlcera Latreille, Encyc. Meth., X, 699, 1825. 

 S. cervicornis may be known as Ophthalmias (nov.) cervicornis. 



Naxia, a manuscript name of Dr. Leach, was first defined and 

 published, but not adopted, b}^ Latreille, Encyc. Meth., Entom., 

 X, 140, 1825, and one species assigned to it, Pisa aiirita, nov. 

 Naxia of INIilne Edwards, 1834, has a different definition and con- 

 tains only the species serpulifera Guerin ; it should be consid- 

 ered a s3a"ionym of Naxioides A. Milne Edwards, 1865. 



Halimus was ver}^ briefly described by Latreille in Cuvier's 

 Regne Animal, ed. 2, IV, 60, 1829. No type was specified, but 

 a single species, H. aries Latreille, is figured in Guerin's Icono- 

 graphie. As this w'as the only species previous to 1834, it must 



* Perhaps no single copy of Herbst's ' Naturgeschichte der Krabben und 

 Krebse ' contains all the title pages of the different parts, and hence qno- 

 tations from this work are full of inaccuracies. The following table, gives 

 the date of issue, number of plates, signatures, and pages of each Heft : 



