Cteniform Spiders of Ceylon, Burmah, &e. 341 
calamistro carent hee alizque species Indo-Malajane generis 
Acanthocten?, mihi, note.”’) 
One would scarcely hope to determine the identity of this 
species from a description taken from an immature female. 
1891-92. Acanthoctenus dimidiatus, Thor. @ ad., 92 mm. 
Ann. Mus. Genov. ser. 2a, xi. (xxxi.) p. 142. Mt. 
Singalang, Sumatra (Beccar?). 
Measurements (sec. 'Thor.).—Tot. len. 9°75 mm., carap. 54, 
ant. marg. 1°75; legs 1. 27°75, il. 25, ii. 22°5, iv. 302; 
pat.+tib. iv. 9°75. 
‘‘Palpi longi, graciles, clava patellas anticas latitudine 
circiter equanti. Pars patellaris 2}—3-plo longior est quim 
latior, pars tibialis e& non parum longior et saltem_ basi 
paullo angustior, pene cylindrata, a basi ad apicem sensim 
modo levissime incrassata ; latus ejus exterius prope apicem 
in dentem conicum acuminatum anteriora versus et foras 
directum excurrit, cujus longitudo } diametri partis tibialis 
Vix superat. 
“Pars tarsalis — circa triplo longior est quam _latior. 
Bulbus parum plus dimidium basale partis tarsalis occupat, 
Breviter subellipticus est, modice altus et complicatus, in 
medio lateris exterioris, subter, elevationem nitidam sub- 
ovatam sat magnam ostendit, et prope eam, in medio subter, 
partem quandam ferrugineam, que, quam a latere exteriore 
inspicitur bulbus, postice dentem deorsum directum pro- 
curvum ibidem formare videtur, preeterea vero in procursum 
gracilem porrectum apice profundo bifidum sive furcatum 
excurrit. 
“Ceph. et abd. subfuscis, fascia media angusta alba ab 
oculis ad anum ducta ornatis, abdominis dorso preterea 
saltem posterius ordinibus duobus longitudinalibus macu- 
larum magnarum nigrarum notato.” 
An adult male, obviously belonging to this genus, but 
specifically distinct from Thorell’s species, is now before me 
from Borneo. One can well understand 'Thorell’s supposition 
as to its being congeneric with Acanthoctenus, Keys., of 
which the type is before me. 
1891-92. Acanthoctenus letus, Thor.  ad., 102 mm. 
Ann. Mus. Genov. ser. 2 a, xi. (xxxi.) p. 146. Sarawak, 
Borneo (Doria e Beccar?). 
Measurements——Tot. len. 102 mm., carap. 5°5, ant. 
marg. 1°75; legs 1. 82, i. 28°25, iii. 24°5, iv. 36; pat.+ 
tib. iv. 10°5. 
“Palporum clava—pars eorum patellaris duplo et dimidio 
Jengior est quam latior ; pars tibialis e& saltem } longior est, 
