14 THE ZOOLOGIST. 



chain of buds, Virchowia and Procerastea have only a single 

 bud. 



Pagenstecher* thought he observed lateral budding in Exogone 

 gemmifera, but, as pointed out long before by (Ersted,t this is 

 simply a case of gestation. Yaillant,! again, considered he had 

 discovered a series of buds in an Annelid apparently belonging 

 to the Terebellidce, but, as shown in 1868, § this was due to a 

 misapprehension ; and Ehlers, of Gottingen, agreed. The only 

 noteworthy case of lateral budding is that of Syllis ramosa\\ of 

 the ' Challenger,' though perhaps it is foreshadowed by the 

 monstrosity subsequently mentioned by LangerhanslT in Syllis 

 variegata, and by the bifid tails described by Andrews in Procercea 

 tardigrada.** More recently H. Parlin Johnson ft has given an 

 account of the curious Trypanosyllis gemmipara from Puget 

 Sound, in which a dense cluster of buds (about fifty) spring 

 from "proliferating somite or somites" near the posterior ex- 

 tremity of the Syllid. They are attached by a short unsegmented 

 pedicle. The remarkably branched Syllis ramosa was procured by 

 the ' Challenger' on muddy ground in the Flores Sea, and also off 

 Zebu — one of the Philippines — in a cup-shaped silicious sponge. 

 It was situated above the wisp, and sent branches into the 

 various canals of the sponge. No head occurred in any part 

 from Zebu, but one head was found in that from the Flores Sea. 

 No pharynx and no proventriculus was present. The free ends 

 of the animal in many cases had a more or less finished appear- 

 ance, as if sea-water carried in food to the moniliform alimentary 

 canal. In others the ends presented developing buds. The body 

 of the animal, indeed, has a furor for budding — laterally, ter- 

 minally, and wherever a convenient point occurs. The young 

 buds remain slender till they have reached considerable length, 

 and into each a diverticulum of the alimentary canal of the 

 parent enters. On attaining a certain size they give off other 



* 'Zeitsch. f. w. ZooL' 1S62, Bd. xii. p. 267. 



f ■ Archiv f. Naturges.' i. p. 20, 1845. 



I ' Ann. des Sc. Nat.' 1865. 



§ ' Trans. Eoy. Soc. Edin.' xxv. p. 309. 



|| ' Annelids of the Challenger,' p. 198, plate xxxi., &c, 1885. 



IT ' Nova Acta der K. Leop.-Car. Akad.' Bd. xlii. p. 102. 

 ** ' American Naturalist,' 1892. 

 ff 'American Naturalist,' vol. xxxvi. p. 295, April, 1902. 



