30 ARANEIDEA. 
The second, C. pernix, having two long spurs beneath tibia i. and tarsus iv. divided 
beneath, is here separated under Ausserer’s genus Hapalopus. 
HAPALOPUS. 
Ischnocolus, subgen. Hapalopus, Ausserer, Verh. zool.-bot. Ges. Wien, xxv. p. 175 (1875). 
Type H. formosus, Auss. loc. cit. t. 6. figg. 17, 18, Santa Fé de Bogota, Colombia. Type in coll. Hof- 
museum, Vienna. 
Tibie and protarsi iii. and iv. more or less spinose. Femur iv. without scopulate pad on the inner side. 
Protarsus ii. scopulate to the base. Tarsus iii. with an indistinct and tarsus iv. with a distinct narrow 
_row of sete dividing the scopula longitudinally. Tibia i. (male) with two stout spurs at the apex 
beneath. Sigilla: three pairs apparent. 
M. E. Simon (Hist. ‘Nat. Araign. éd. 2, i. p. 141) regards Hapalopus, Auss., as 
identical with Cyclosternum, Auss. There seems to be no sufficient reason for such a 
conclusion; indeed, from examples before me, which undoubtedly belong to the 
former, which I identify as H. formosus, Auss. (from Colombia), and H. inflatus, Sim., 
besides several other species referable to the same genus, there is every reason to 
conclude otherwise. For, Ausserer says, “ Sternum even somewhat broader than long, 
convex” (“Sternum fast etwas breiter als lang, gewélbt”). “ Scopula, die an Tarsus 
iii, und iv. sowie am Endgliede der Palpen, durch ein breites Band von Stachelborsten 
getheilt ist.” 
Simon makes no mention of the sternal character which Ausserer considered charac- 
teristic, if any one was, of his genus Cyclosternum, namely, its breadth and convexity. 
Adult examples are before me which exhibit this character very distinctly; and I 
am therefore able to refer those not possessing this form of sternum, but possessing 
two spurs beneath tibia i. and the scopule of tarsus iv. divided, to Hapalopus, Auss. 
Confusion may arise if it is not borne in mind that immature examples of Hapalopus 
and other Theraphoside exhibit a sternum much more circular than is found in the 
adult form, and these might on that account be referred to Cyclosternum. ‘The 
sternum of the examples which I refer to above is, however, quite distinct in 
character from that found in the young of Hapalopus. 
I have also before me two adult males of a form which I identify as Hapalopus 
inflatus, E. Sim., and in these the sternum is most decidedly longer than broad, 
measuring from the base of the labial plate, and not in any way convex. - 
Whether M. Simon has seen the type of Cyclosternum schmarde, Auss., or not, I 
cannot say. If so, he must either have overlooked the chief character, or else 
Ausserer must have described a character which did not present itself. Whether 
the male referred by Simon to this latter species, of which he gives a figure in Hist. 
Nat. Araign. éd. 2, i. p. 138, really is identical with it, I cannot say, for Ausserer’s 
type was, for all he himself says to the contrary, a female. I therefore reserve 
Cyclosternum for Ausserer’s original type schmarde, and Hapalopus for the type 
formosus, Auss. 
