9 
On Mygalomorphe in the British Museum. 223 
XXXIT.—Notes on the Identity of some of the Types of 
Mygalomorphe in the Collection of the British Museum. 
By R. 1. Pocock, of the British Museum. 
Aganippe subtristis, Cambr. Ann. & Mag. Nat. Hist. (4) 
x1x. p. 28 (1877).—In the thickly scopulate distal segments 
of the legs of the first and second pairs, as well as in the 
absence of marginal rows of spines, the genus Aganippe falls 
into the Cyrtauchenieew, as Simon rightly surmised. ‘The 
claws of the legs are armed with only a few teeth, of which 
one is very large. ‘The three sternal impressions are distinct, 
the first marginal, the second removed from the margin a 
small distance, both being smallish; but the third or poste- 
rior pair are much larger, oval, and approaching the middle 
of the sternum, although further from each other than from 
its borders. 
Idiops Cambridget, Ausserer (Verh. z.-b. Ges. Wien, 1876, 
p- 145), from Bogota, belongs to the genus Pseudidiops, Sim. 
(= Dendricon, Cambr.). It may besynonymous with P. opifea 
of Simon, from Guiana and Venezuela, but it differs from 
P. rastratus, Cambr., from Bahia, in having the posterior 
median eyes subequal to the anterior median *, and separated 
from each other by a space which equals twice their diameter, 
and from the posterior lateral by a space which about equals 
their diameter ; whereas in P. rastratus the posterior median 
eyes are much ‘smaller than the anterior median, closer to the 
posterior lateral, and separated from each other by a space 
equal to about three diameters. 
Bolostromus venustus, id. (op. cit. p. 149), is congeneric 
with Phenothele Gaujont, Sim., inasmuch as the claws of the 
posterior legs have two rows of denticles and the anterior line 
of eyes is straight. 
Eucteniza mexicana, id. (op. cit. p. 149)—The genus 
Eucteniza seems to fall partly into the tribe Cyrtaucheniez 
and partly into that of Ctenizee. ‘The tarsus of the palp is 
distinctly pyriform and lightly scopulate, with two external, 
two internal, and two apical spines. ‘The tarsi and protarsi 
of the first and second pairs of legs are also lightly scopulate, 
and the tarsi are only armed towards the apex with two or 
* The anterior median eyes are those that form the middle row, and 
not those that are placed on the marginal tubercle, these being the ante- 
rior lateral. 
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