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longitudinal fissures on the mandibles and legs near 
the centre. 
I shall, moreover, add that I have found a great 
number of small, both short and long, transverse bands 
composed of very small longitudinal fissures, both on 
the upper and lower side (Tab. II, fig. 6) of the proximal 
half of tibia; I have not met with any on the other 
joints; I shall, however, not deny the possibility of their 
existence, as it may be difficult to catch sight of them. 
I do not feel competent to express an opinion of their 
nature; they have most likely nothing to do with lyri- 
form organs; but still this little remark may perhaps 
be put in here. 
B. Taetile Hairs. 
Such hairs are not known in Phrynide. I have 
found 2 very different forms, the one on the tarsus of 
the Ist pair of legs, the other form on the 3: other 
pairs of legs. 
Tarsus of the Ist pairzorless: 
It is notorious that it is prolonged and divided into 
numerous, small joints. Not quite the outmost third 
part of tarsus is, besides the ordinary setæ, furnished 
with very characteristic hairs, that appear very numerous 
on the last joints (Tab. II, fig. 7, s). These sense-hairs 
are very small, short, clavated (fig. 7 and fig. 8), they 
remind very much of the form found by Wagner in 
Mygale sp. which he terms »poil cucurbitiforme« (op. 
cit. p. 129, fig. 4); the stem is stouter and the distal 
part but litttle swollen, while the hair figured by Wagner 
has a shorter and slender stem and a distal swelling 
comparatively many times larger. Their insertion is 
extremely reduced in size, and the most minute examina- 
tion under high magnifying powers is necessary to 
notice those slight particularities, which remind of tactile 
