448 Mr. R. I. Pocock on 
the statement made by me in the ‘ Poissons du Bassin du 
Congo,’ that no representative of the genus Pimelodus, in the 
modern sense, is known from Africa. 
The Cameroon Pimelodus guttatus, Lénnberg, to which 
Mr. Poche has alluded, is, to judge by the description of the 
nostrils, clearly an Auchenoglanis, as defined by me, a view 
in which Dr. Lonnberg informs me he fully concurs. 
LVII.—Some new Genera and Species of Lithobiomorphous 
Chilopoda. By R. I. Pocock. 
THE genera of Lithobiomorpha which appear to me to be 
recognizable may be tabulated as follows :— 
a. No stigmata upon the first leg-bearing somite; 
more than one ocellus on each side of the head ; 
no completely chitinized ‘‘collar” behind the 
coxee of the toxicognaths ..............,.«-6. Lithobiide. 
a‘, Coxal pores present upon the last five pairs of 
N55) 5 Soon nb os go0d00a0bgnagodbiavcosss080 Pseudolithobius. 
b', Coxal pores present only upon the last four pairs 
of legs. 
a*. The pores few and uniserial .............. Lithobius. 
b?. The pores many and multiserial .......... Bothropolys. 
b. A pair of stigmata upon the first leg-bearing 
somite and a single pair of ocelli on the head; 
a completely chitinized ‘“ collar” behind the coxe 
of the toxicognaths (? in Cermatobiide). 
a®, Coxal pores present ; legs shorter, tarsi of four- 
teenth pair with not more than six segments; 
gonopods of 9 stout; antenne not funiculate ; 
legsawathebibralaspike sire cei sels tene Henicopide. 
a*, Coxal pores reduced to one on each side; 
fifteenth pair of legs much shorter than 
fourteenth and without protarsal segment .. Haasiella. 
b+, Coxal pores 3 to 5 in adult; fifteenth pair of 
legs longer than fourteenth, with distinct 
tarsal and protarsal segments. 
a’, Tarsi of anterior legs not more than two- 
jointed. 
a’. Tarsi of anterior legs undivided (legs of 
fourteenth and fifteenth pairs with tarsus 
and protarsus undivided) ............ Lamyctes. 
bf, Tarsi, at least of anterior pair of legs, 
bisegmented (legs of fourteenth and 
fifteenth pairs unknown) ............ Paralamyctes. 
65, Tarsi of anterior legs trisegmented, of four- 
teenth and fifteenth pairs six-jointed.... Henicops. 
43, Coxal pores absent; tarsi long, with not fewer 
than four segments, those of fourteenth pair 
many-jointed; no tibial spike; gonopods of 
female slender; antenne funiculate ........ Cermatobiide : 
Cermatobius, 
