Questions of Myriopod Nomenelature. ad 
pulchellus of Leach to be synonymous. Gruttulatus therefore 
is the type of Blaniulus. 
_ In 1851 a second genus, namely Nopotulus, was introduced 
by Menge (Neueste Schr. Ges. Danzig, iv. pt. 4, no. ii. p. 7) 
for a species named punctulatus, differing from the type of 
Blaniulws in possessing a row of seven eyes on each side 
of the head. Punctulatus therefore is the type of Noporulus. 
This genus, however, dropped out of use as a synonym of 
Blaniulus, and was forgotten by the authors who have busied 
themselves with the Blaniuloid genera. 
In 1898 Dr. Verhoeff found that Blaniulus, in the compre- 
hensive sense recognized by Meinert, Latzel, and their 
successors, can be divided, mainly by the structure of its 
copulatory organs, into three genera, which are named Typh/o- 
blaniulus, for guttulatus and troglobius ; Trichoblaniulus, for 
hirsutus ; and Blaniulus, for venustus, palmatus, and Philepsiv. 
From the standpoint of nomenclature, however, this classi- 
fication is open to obvious criticism. In the first place, since 
guttulatus is the type of Blaniulus, Typhloblaniulus must be 
a synonym of Bianiulus, and the latter cannot be assigned to 
the species typified by venustus. In the second place, since 
venustus is recognized as identical with punctulatus of Menge, 
the type of Nopotulus, Blaniulus as restricted by Dr. Verhoeff 
is nothing but Nopoiulus of Menge (see Archiv f. Naturgesch. 
1898, p. 172). 
A fourth genus was introduced by Silvestri (Bull. Soc. 
Ent. Ital. xxix. p. 24,1897), namely, Proterovulus, for Blan- 
iulus fuscus, Stein. 
Hence the genera of this group will stand as follows :— 
Blaniulus, Gervais (= Typhloblaniulus, Verh.). 
Type guttulatus, Bosc. 
Trichublaniulus, Verhoeff. 
Type Blaniulus hirsutus, Brol. 
Nopoiulus, Menge (= Blaniulus, Verh., nec Gervais). 
Type lulus Kochit, Gervais (=pulchellus, Koch nec 
Leach, punctulatus, Menge, and venustus, Meinert) *, 
Proteroiulus, Silvestri. 
Type Blaniulus fuscus, Stein. 
* Latzel’s reasons for calling this species venwstus are not clear, since 
both Kochit and punctulatus are older names and antedate it in the list 
of synonyms given in that author's classical work. 
