ARACIINIDA. 
255 
with small warts adapted to retain the spermatozoids ; tlie em- 
dolus is horny and elastie, acienlar or flagelliform. The preeise 
offices of these parts the author has been unable to ascertain, 
but he seems to think it not improbable that the embolus may 
assist in passing the spermatozoids into the seminal pouches of 
the ? . The other organs of the clavate palpus are regarded as 
retinacula. The remaining terminology proposed by the author 
may be passed over, except as regards the organs surrounding 
the genital orifice of the $ . The Opercular lobe is denominated 
claustrum, and the horn-like process which usually springs from 
it is the nail {clavus) — the epigyne of Savigny and Walckenaer. 
The genital region in the $ is called sariim. 
On the parasites of Spiders Menge has the following observa- 
tions {1. c. pp. 36-39) : — Scarlet Dermanyssi occur on many 
Spiders, especially of the genera Micryphantes , Theridion, and 
Boly 2 )hantes . Mermis albicans has occurred on Argyroneta 
aquatica. From a specimen of (Koch) Menge 
has bred Hemps marginatus (Meig.) or Oncodes pallipes (Erichs.), 
of which the pupa and imago are described and roughly figured 
{l.c. pp. 37-38). Two other insect-larvae, both footless and 
one at least probably hymenopterous, were found by the author 
on specimens of Arctosa cinerea and Miranda adianta, but he 
was unable to rear the perfect insects from them . 
Menge (/. c. p. 40) indicates the following tribes as those into 
which he proposes to divide this order : — 
1. Orhitclce ] 2. JRctiparoi {Betiarico^ p. 94) j 3. Tuhitelai ; 4. Saccicolce j 5. 
Saltigrad <2 j 0. Laterigradm ; 7. Citigradce. The first of these groups in- 
cludes the families Bpeiridce and Tetrog7iatliidce ] the second the 3 families 
Pachygnat1iid(B, Linyphiid<^j and TheridiidcB. 
Elackwall publishes (Ann. & Mag. N. II. 3rd ser. xviii. pp. 451-468) a list 
of Spiders collected in south-eastern tropical Africa, including in all 21 spe- 
cies, the majority of which are described as new. Of the described species 
(8), several are remarkable ns being known only from America, such ns 
Orithyia williamsii (Elnckw.), Olios Icucosius (Wnlck.), Pholcus pfdlukts 
(Elackw.), Artcma convexa (Elnckw.), and Nephila genictdota (Wnlck.). 
The others are the Indian Gastcracantha frontata (Elnckw.) and the Euro- 
pean Bpcira solcrs (Wnlck.) and Scytodcs thoracica (Wnlck.). 
PiiACii’s list of Spiders inhabiting the vicinity of Prague (Verli. zool.-bot. 
Ges. in Wien, xvi. pp. 636-637) includes 119 species, distributed in families 
as follows: — Epeirides20, Thc7'idides2^, AgelenidesQ) (including ^r< 7 yro«e^cr), 
Drassides 10, Pholcides Ly cosides 18, Thomisides 21 j Attidcs 16, and 
Dysderides 4. 
Miss Stavelfa" calls attention to the presence of a comb-like row of teeth on 
the maxillce of Spiders. She instances Agelcna hhyiintJiica, Salticus see- 
nicus, Epeira callophylla, Tctragnatha extensa, and two species of Thei'idion^ 
and figures the maxilla of the Agelcna. Proc. Zool. Soc. 1865, p. 673 ) 
Ann. & Mag. N. IT. 3rd ser. xvii. p. 400. 
The occurrence of a venomous black Spider at Eerdiansk amongst the 
