330 Mr. F. 0. P. Cambridii-e on the 



o^ 



(i.) Introduction. 



The following paper includes spiders of the group Ctenino}^ as 

 well as others belon^ino; to the 3-clawed forms of those which 

 have tlie characteristic Ctenoid eye-formula. Of the new 

 species, one was taken bj Mr. S. S. Flower in Pinang, two were 

 taken by JMr. C. W. Hose in Borneo, while a fourth was taken 

 in Ceylon by Mr. W. Barnes. One new species occurred in the 

 Keyserling collection and two more were found in the Museum 

 collection. So far as the material at my disposal permits one 

 to judge, there is no generic distinction between the 2-clawed 

 forms found in these regions and those in Central, Equatorial, 

 and Southern America. 



Of the 3-clawed forms, however, those included in my last 

 paper on the genus Lycoctenus are quite distinct generically 

 from those which Simon included under {Titurius) Thalassius 

 and Thorell under Dolopcpits. One cannot refrain from 

 remarking on the infinite trouble which authors are laying up 

 for those that come after by j)ublishing meagre descriptions 

 of new species without any figures. Even in cases where 

 descriptions are elaborately minute, there has in many instances 

 been no attempt at selectiiig the salient differential characters. 

 Unless the descriptions of authors are conscioudij comparative^ 

 numbers of characters common to a whole genus will be 

 constantly repeated, while, as likely as not, the one vital differ- 

 ential character will be overlooked, thus rendering the whole 

 work useless and vexatious. 



Mr. K. I. Pocock, of the Natural Uistory Museum^ has 

 kindly allowed me to examine all the Eastern Cteniforni 

 spiders in the collection and describe the new forms. 



(ii.) a. List of Species noted in the Text. 



1887. aenus trahifer, Thor.-Burmab. P. 332, PI. IV. lig. 14. 

 1887. C ramoms, Thor.— Burmah. P. 333. 



1887. C. ohscurus, Thor.— Burmah. P. 334. 

 1890. C.fumjifer, Thor.— Pinang. P. 334. 



1890. a hicusiatus, Thor.— Borneo. P. 334. 



1891. C. trahifer, Thor., Karscb.— Ceylon. P. 335, PL W. tig. 13. 



1892. C. jmlvinatus^UXwx. — Sarawak. P. 335. 



1893. C. Pollii, van Hass.— Sumatra. P. 336. 

 1893. C. arijcntipes, van Ilass. — Sumatra. P. 336. 

 1895. C. harbatus, Thor.— Burmah. P. 337. 



1895. C. denticuhitus (Sim.), Thor.— Burmah. P. 337, Ph IV. figs. 4-0. 

 1882. Leptucteniis valvularis, van Ilass.— Sumatra. P. 338, PL IV. 



tig. 16. 

 1884. Z. denticuhitus, Sim.— Burmah. P. 338. 



1888. L. tumididus, Sim. — Tavoy. P. 339. 



1893. i. injalenoides, L. K,, van Hass. — Sumatra. P. 340. 



