222 
ARACHNIDA. 
on the correlated additional spinners, or inframammillary organ ; 
the calamistra of the male spider being stated to be frequently much 
less conspicuous than those of the female.* Some difficulties are men- 
tioned in connection with the conclusions of the late Richard Beck 
(communicated to the Microscopical Society in 1861) as to the formation 
of the viscid globules of the spiral line in the snare of Epeira diademata 
(Clk.). 
Cambridge, O. P. Systematic list of the Spiders at present known to 
inhabit Great Britain and Ireland. Tr. L. S. xxx. pp. 319-334. 
A catalogue of 457 species, distributed among 78 genera, based upon 
the results of a comparison of typical examples, of most of the species, 
from Sweden, G ermany, and France, with those of England, with a view 
to establish a correct nomenclature in accordance with the laws of 
priority. The following shows the distribution of species among the 
various genera : — 
Atypus, 2; Oonops, 1; Schosnobates, 1; Dysdera, 2 ] Harpactes, 1; 
Segestria, 2 ; Micarea, 1 ; Drassus, 9 ; Gnaphosa, 2 ; Prosthesima, 4 ; 
Cluhiona, 15 ; Chiracanthium, 4; Anyphcena, 1 ; Agrceca, 2 ; Liocranum^ 4 ; 
Hecaerge {Zord), 2; PhruroUthus, 1; Eresus, 1; Dictyna, 5; Argy- 
roneta, 1 ; Amaurohius, 3 ; Lethia, 3 ; Ccelotes, 3 ; Agelena, 3 ; Te- 
genaria^ 5 ; 2'etrix^ 2 ; Cryphoaca, 1 ; Hahnia, 3 ; Scytodes, 1 ; Pholcus, 1 ; 
Episinus, 1 ; Pholcomma^ 1 ; Theridiu7ti, 18 ; Nesticus, 1 ; Phyllo- 
nethis^ 2 ; Dipccna, 1 ; Steatoda, 6 ; Ew'yopis^ 4 ; Asagena^ 1 ; Neriene 
{ErigonCj Sav., pt.), 76 ; Walchenaera {Erigone^ Sav., pt.), 55 ; Pachy- 
gnathaj 3 ; Tapinopa^ 1 ; Linyphia^ 66 ; 1 ; Meta, 3 ; Tetragnatha, 
1 ; Cyrtophora, 1 ; Singa, 4 ; Cercidia, 1 ; Zilla, 2 ; Epeira, 20 ; 
Ulohorus, 1 ; Hyptiotes, 1 ; Thomisus, 1 ; Misumena, 2 ; Dicea, 2 ; 
Xysticus, 23 ; Philodromus, 10 ; Thanatus, 2 ; Microm^nata, 1 ; Ocyale, 1 ; 
Dolomedes, 1 ; Pkata, 5 ; Trochosa, 5 ; Lycosa, 10 ; Tarentula, 5 ; 
Oxyopes, 1 ; Epiblemum, 3 ; Ileliophanus, 3 ; Ballus, 1 ; Marpesm, 3 ; 
Evophrys, 5 ; Philceus, 1 ; Attus, 11 ; JElurops, 1 ; Yllenus, 2 ; SalHcus, 1. 
For general synonymy, descriptions, and figures reference is made to 
the published works of Blackwall, Thorell, and Cambridge. 
Karscii, Ferdinand. Verzeichniss Westfalischer Spinnen (Ara- 
neiden). Ver. Verb. Rheinl. (3) x. [1873] pp. 113-160, pi. i. 
154 species are recorded, and of these 2 are described and figured as 
new. The species are distributed among 70 genera as follows : — 
Epeira, 17 ; Cyclosa, 1 ; Zilla, 1 ; Zygia, 1 ; Cei'cidia, 1 ; Singa, 3 ; 
Meta, 2 ; T'eti'agnatha, 1 ; Pachygnatha, 3 ; Linyphia, 9 ; Lepthyjdiantea, 
3 ; BolypTiantes, 2 ; Stemonyphantes, 2 ; Drapetisca, 1 ; Tapinopa, 1 ; 
Ero, 1 ; Steatoda, 7 ; Neottiura, 1 ; Theridium, 1 ; Crustidina, 1 ; 
Eucharia, 2 ; Gonatium, 2 ; Tineticus, 1 ; Erigone, 2 ; Lophomma, 1 ; 
Phalops, 1 ; Dictyna, 3 ; Hahnia, 1 ; Tegenaria, 1 ; Philccca, 2 ; 
Agrceca, 1; Textrix, 1; Agelena, 1; Amaurohius, 3; Segestria, 1; 
Dysdera, 1 ; Ilai'pactes, 1 ; Argyroneta, 1 ; Melanophoi'a, 2 ; Micaria, 
2 ; Phrwolithus, 1 ; Chiracanthium, 2 ; Anyphcena, 1 ; Cluhiona, 7 ; 
* The Recorder has never been able to detect a trace of calamistra in the males 
of any Spider that has come under lus notice. 
