420 TRANSACTIONS OF SECTION D. 



signs of degeneration, e.g., fragmentation of the ovules, pyenosis of the 

 spermatogonia. Ripe products are still for some time expelled to the exterior, 

 but from July the emission ceases, and the spermatozoa remaining in the testis 

 become agglutinated and phagocytosis occurs ; they are ingested by the reserve 

 cells. These cells gradually occupy the whole genital gland. 



Other Echinoids may prevent analogous phenomena, while in Asteroids, 

 where there is no reserve tissue, the genital glands, after having almost filled 

 the arms, become so much reduced as to be nearly imperceptible. 



3. British Symphyla (Scolopendrellidap). 

 By Eichard S. Bagnall, F.L.S. 



Up to a year ago only one species, a Scutigerella, but more commonly known 

 as Scolopendrella immaculata (Newport), wa6 known to British naturalists. 

 In 1904j H. J. Hansen monographed the order, recognising eight European 

 forms, some of which were somewhat widely distributed. Of these, six have 

 occurred in the North of England (that is all but Scutigerella nvvea (Scopole), 

 and Scolopendrdla microcolpa (Muhr), and in addition four other well-defined 

 and apparently new forms. This material forms the subject of a ' Synopsis of 

 the British Symphyla,' which will shortly be published in the Transactions 

 of the Natural History Society of Northumberland and Durham. 



Drawings demonstrated the strong characters which separated the two genera, 

 and the equally good characters of the various groups and species as follows : — 



Genus Scutigerella 



Group I. 



S. immaculata (Newport). 

 <S\ biscutata (Bagnall). 



Group II. 



8. hanseni (Bagnall). 

 S. caldaria (Hansen). 



Genus Scolopendrella. 



Group I. • Group III. 



S. notacantha (Gervais). S. Isabella (Graesi). 



S. Isabella, var. dunelmensis 

 (Bagnall). 

 p, TT S. horrida (Bagnall). 



lxrou P U ' 8. vulgaris (Hansen). 



S. subnuda (Hansen). S. delicatula (Bagnall). 



S. minutissima (Bagnall). 



New Diri.oroDs. 



The following Diplopods were recorded from the North of England, each 

 representing a genus previously unknown to the British fauna : — 

 Brachychateumidce nov. fam. (Verhoeff). 



Brachycliozteuma bagnalli q. et. sp. n. (Verhoeff), 1 $ . 

 Polydesmidce. 



Titanosoma jurassicum (Verhoeff). Numerous ?s., described last year 

 from a single example taken in the Valley of the Danube. 

 Chordeumidoz. 



Microchordeuma sp. 1 9, 

 Julidce. 



Isobates varicornis (Koch). Several <j> s and £s. 

 Napoiulus sp. (probably palmatus, Nemec). Several ? s. 



Pauropods. 

 An apparently new Pauropod belonging to the family Eurypauropodidse was 

 described from the North of England, this being the first British example of 

 that family, and differing in a striking manner from the species known to the 

 author. 



