THE GENERAL SUBJECT. 
263 
Fanzago, F. Alcune nuove specie di Miriapodi. L. c. pp. 149-152. 
Describes as new — Julus niargaritatus, p. 149, Veneto, 
Trentino, and stuxhergi, no locality given, p. 150, Platyrhacus terreus, 
Veneto, and Craspedosomx nemm\t\omoides^ Monferrato, p. 151. 
Lebert, H. Yerzeichniss schlesischer Spinnen, mit Aufzahlung der 
schlesischen Myriapoden. Tubingen : 1875 [not seen by the Re- 
corder]. 
Metschnikoff, Elias. Embryologie der doppelt-fiissigen Myriapoden 
(Chilognatha). Z. wiss. Zool. xxiv. [1874] p. 253. 
. Embryologisclies ueber Geophilus. Z. wiss. Zool. xxv. pp. 313- 
322, pis. XX. & xxi. 
The result of the author’s embryological observations is that the deve- 
lopment of Geophilus accords pretty closely with that of the Chilognaths, 
ref erre d to in the first of these papers, wdth the remark that in some 
points it approaches the Julidce^ and in others the Polydesmidce. It is, 
however, distinguished from all Chilognaths as yet observed, in having 
the yelk-mass not outside, but inside the intestinal canal. Deductions 
as to the affinities of various groups of the A rthropoda are made. 
Packard, Jr., A. S. Life Histories of the Crustacea and Insects. Am. 
Nat. ix. pp. 606-610, figs. 261-264. 
Gives a short account of the embryological development of Myrio- 
pods, after Metschnikoff. The conclusion is, “ that the Centipedes 
{Chilopoda) differ from the thousand-legs {Chilognatha) in the mouth- 
parts being of the same number as in insects ; and that the young are. 
born with a pair of feet on each of the three segments behind the head, 
while the larva is provided with nearly the full number of feet on the 
rest of the body, there being no metamorphosis. The body, at first 
cylindrical, afterwards becomes fiattened. Thus the Centipedes may be 
said in some degree to pass through a Julus condition, and, at all events, 
both morphologically and embryologically, the Centipede is a more 
highly developed creature than the thousand-legs.” 
Stuxberg, a. Genera et species Lithobioidarum disposuit. CEfv. Ak, 
Forh. 1875, No. 3, pp. 5-22. Abstr., Ann. N. H. (4) xvi. pp. 188- 
192. 
114 species of Lithohius, Henicops, and Lamyctes, are tabulated, with 
references to descriptions and localities ; and with titles and dates of the 
26 principal works or papers on the groups. Lithohius nudicornis^ Gerv., 
and monilicornis^ Luc., = impressus,' C. Koch ; L. rugosus^ Mein., = 
xanti, Wood ; L. vulgaris and Icevilahrum^ Leach, americlmus and leachi, 
Nowp., hortensis and coriaceus, L. Koch, multidentatus, Wood (1863, nec 
1865), curtirostris, Eis. & Stuxb., and ? spinipes, Say, = forficatus, L. ; 
L. lubricus, L. Koch, = calcaratus, C. Koch, juv. ; L. variegatus^ C. Koch, 
nec Leach, = mutabilis, L. Koch ; L. gracilis, Porath, = Lamyctes fiilvi- 
cornis, Mein. 
The following new sub-genera of Lithohius are proposed, p. 8 : — 
Eulithobius, type, L. pimctulatus, C. Koch. 
Neolithobius, type, L. vorax, Mein. 
