41 



Sect. 11. Timerus Oreen (Homalonatiis Konig). 

 Protuberantia frontalis integra; sulci longitudinales 

 obscuri; rhachis quam pleura latior. 



7. C. delphinoc ephala Green. 



C. corpore tuberculoso, capite antice attenuato; pro- 

 tuberantia fontali vix distincta, depressa, oblonga, abbre- 

 viata ; oculis papillae - formibus, hiantibus, minutissimis, in 

 genarum parte media sitis; rhachide thoracica parum di- 

 stincta, sulcis longitndinalibus continuis, abdomine acu- 

 minato - triangulari , rhachide apicem attingente, 8 — 12 

 articulata, limbo costato. 



Timerus delphinocephalus Green pg. 82. f. 1. 



Fig. gjps. No. 32. 



Homalonatus delphinocephalus in: Murchinson's 



Silur. Syst. pg. G5!. VH. bis 1. a. b. 

 In calce transitoria Americae bor. (Williamsville 

 Niagara Co. Nevv York), Angliae (Wenlockrock, Dudley). 



8. C Ludensis Murch. 



C. capite rotundato-triangulari?, tuberculato; sulcis 

 longitudinalibus per impressiones indicatis ; abdomine trian- 

 gulari, acuminato, 9 ?— articulato : articulo postremo in acu- 

 men extenuato. 



Homalonotus Ludensis Murchinson 653. VIL 3. 4. 



In stratis tansitionis formationis supremis (Ludlow- 

 rock) per Angliam frequentissime obvia. 



Homalonotus Knightii Koenig (Murchinson VII. 1. 

 2.), cum antecedente obvia, et H. Herschelii Murch. ex 

 Africa austral. (Cedar Mount.) a C. Ludensi parum di- 

 versi. Omnes istae species C. delphinocephalae proxi- 



