149 
the centre of which projects down in the cavity a small 
hollow (?) chitin-tack, which does not, however, rise 
above the area and which is, I suppose, connected with 
the nerve. Thus 9 organs are collocated in one group. 
In Androctonus australis L. is found not one 
large area, but 2 small ones, which are situated at 
intervals rather oblique behind each other; each little 
area has 2 organs. 
Considering their structure, certainly as yet but 
preliminary and insufficiently studied, I suppose that 
these organs are a kind of sense-organs, but I can say 
nothing at all about their functions. I have found quite 
similar but scattered organs on the large chelæ of 
Chelifer (see Chelonethi). 
II. Phrynidæ. 
Karsch, F.: Ueber eine neue Eintheilung der Taran- 
tuliden (Phrynidæ autt.). (Arch. f. Naturg. 45. Jahrg. 
1 Bi, 1879, p. 189-197). 
Thorell, T.: Arachnidi Arthrogastri Birmani (Annali 
del Museo Civico di Storia Natur. di Genova, ser. 
3° Nola Vil 1889" p: 521729, Vay, V): 
Simon, E.: Remarques sur la classification des Pedi- 
palpes (Ann. de la Soc. Entom. de France, Vol. 
LXI, 1892, p. 45—51, Pl. 2, fig. 9—16). 
Bruce, A. T.: Observations on the Nervous System of 
Insects and Spiders and some Preliminary Observa- 
tions on Phrynus (John Hopkins Univ. Circulars, 
Vol. VI, Nr. 54, Dec. 1886, p. 47). 
A. Lyriform Organs. 
Gaubert has (op. cit. p. 85) only found one single, 
but highly developed organ lying on the posterior side 
(ought to be the anterior side) near the apex of the 
