1896.] SPIDERS FROM THE LOWBB AMAZONS. 739 



though the Avicularias certainly scarcely had a chance, for I 

 usually caught thera under a handkerchief or glove, -when the legs 

 could not he used in the vi'ay described above. Still it is quite 

 possible that they also act in the same way, for the abdomen of 

 Avicularia was in many cases entirely devoid of pubescence. Sania- 

 remia pococJcii, however, had plenty of chances, but never made 

 use of this method of defence, so far as I observed, nor were their 

 abdomens in any case bare of pubescence. 



This handsome Spider is probably the Bird-eating Spider described 

 and figured by Bates in his ' Naturalist on the Amazons,' though 

 I found nothing save beetle relics (Longicorns chiefly) in the bottom 

 of the hollow where A. geniculata lived. So far as I linow no 

 account of the whisking off of irritating hairs by A. geniculata or 

 any "Mygale" has ever been published, if ever observed. 



There can be little doubt but that the A. genieulaia here described 

 is identical with the specimen in the Berlin Museum. This, a 

 male, has been figured by Koch, and a male specimen in the British 

 Museum of Natural History agrees well with the figure. The 

 annulations on tho logs are its chief characteristic. Whether 

 Ausserer saw the type male or not, 1 cannot say, but he may have 

 taken his descriptions from Natterer's specimen from the Rio 

 Branco, Brazil. The female of this species is an addition to the 

 National collection. 



AOANTHOSCUBEIA BEOCKLEHIfRSTI, U.Sp. (Plate XXXIV. fig. 18.) 



2 . Hah. Para. Type in coll. Brit. Mus. Nat. Hist. 1896. 

 Length 60 mm., including base of mandibles. 



5 .■ — Colour. Carapace deep brown, clothed with grey-brown 

 velvety pubescence. Margin of clypeus fringed with fine pink- 

 tipped grey hairs. Base of mandibles thickly clothed with short 

 grey pubescence and longer scattered rufous hairs. Abdomen 

 clothed with deep brown velvety pubescence and long scattered 

 rufous hairs ; ventral surface velvet-black. Sternum and coxeb of 

 legs velvety, clothed with rich chocolate-brown pubescence. Labium 

 and coxa of pedipalp pink, clothed with long pale-orange hairs, 

 inner margin fringed with fiery-red hairs. Underside of base of 

 mandibles pink ; margins of fang-groove fringed with fiery-red 

 hairs. Legs clothed entirely with rich chocolate-brown pubescence 

 and long scattered rufous hairs, apex of each segment fringed with 

 short cream-pink hairs. Patellae of i., ii., iii., and iv. exhibiting 

 two longitudinal lines of short rufous hairs. 



Carapace 22 mm. long, 20 mm. broad ; gibbous behind eyes, 

 with a depression on either side. Central fovea deep, transverse- 

 procurved. Eye-tumulus a little longer than broad, oval, promi- 

 nent. Anterior row of eyes almost straight, procurved ; centrals 

 scarcely one diameter apart (a little less from laterals), their 

 diameter distinctly greater than axis of laterals. Mandibles 

 13 mm. long. Fang short, incrassate about the middle. Fang- 

 groove wdth a row of teeth along inner margin ; both margins 

 fringed with red hairs, outer thickly, inner thinly. Sternum 



