F. P. SMITH ON SOME BRITISH SPIDERS TAKEN IN 1907. 189 



The first objection is the existence of many intermediate forms 

 of bristle, which render it a matter of difficulty to decide, in some 

 cases, whether the organ is a sensory seta or merely a slender 

 vertical hair. This is, of course, exactly what we should expect 

 to find, these exquisitely delicate setae having no doubt developed 

 from tactile hairs. But all that we are at present concerned 

 with is the presence or absence of a certain well-developed seta 

 upon a certain leg-joint. 



The second objection is hardly worth mentioning, certainly not 

 worth discussing at any length. It is that these setae, on account 

 of their excessive tenuity, are easily dislodged, and may thus 

 lead to error. Surely this is merely the admission of one's own 

 clumsiness in collecting, or of one's inability, in the case of 

 specimens collected by inexperienced persons, to detect the very 

 distinct cup or " pocillum " which remains after the seta is 

 detached. I would admit, however, that apart from this, 

 bituberculata and cornuta form quite a neat and reasonable 

 genus, and that on grounds of convenience alone no one would 

 think of separating them. It is a theoretical rather than a 

 practical question, and one upon which authorities seem about 

 equally divided. 



Lophomma subaequalis (Westr.), 1851. 



1851. Eriyone subaequalis, Westr., Goteb. Handl. 



1871. Walckenaera fortuita, Camb., Trans. Linn. Soc. 



1879. ,, subaequalis, Camb., Spid. Dorset. 



1900. Tapinocyba subaequalis, Camb., List Br. It. Spid. 



1906. Lophomma subaequalis, F. P. Smith, Journ. Quekett Club. 



This species occurred throughout the Hastings area during 

 June, being particularly plentiful upon a little ledge on the 

 face of East Cliff, almost directly above the shaft of the dust- 

 destructor, and several hundred feet above sea level. 



Entelecara acuminata (Wid.), 1834. 



1834. Theridion acuminatum, Wid., Zool. Misc. 



1863. Walckenaera altifrons, Camb., Zoologist. 



1879. ,, „ Camb., Spid. Dorset. 



1906. Entelecara acuminata, F. P. Smith, Journ. Quekett Club. 



