73 



Fam. Valkeriidae Hincks. 



Valkeriidae Hincks, 1S77, "On British Polyzoa", I, Ann. Mag. Nat. Hist. (4) XX, p. 532. 

 Valkeriidae Hincks, 1S80, "Hist. Brit. Mar. Pol.", p. 551. 



The Family Valkeriidae was defined by Hincks in 1880, as the first of his group 

 Campylonemida, which he supposed to be characterised by having two of the tentacles everted 

 when protruded. The validity of this character has been criticized by other writers 1 ); and the 

 existence of two everted tentacles cannot at any rate be ascertained in most preserved specimens, 

 in which the tentacles are usually retracted. Hincks defines the Family as having "Zooecia 

 contracted below, deciduous, destitute of a membranous area". The existence of 8 tentacles and 

 the absence of a gizzard were given as characteristic of the Campylonemida in general. 



Valkeria Fleming. 



Walker ia Fleming, J., 1823, Wern. Mem., IV, Pt II, p. 490. 

 Valkeria (pars), Fleming, 1828, "Hist. Brit. An.", p. 550. 

 Valkeria Farre, 1837, Phil. Trans., p. 402. 

 Valkeria Hincks, 1880, t. cit., p. 551. 

 Valkeria Waters, 1910, t. cit., p. 241. 



Zooecia ovate or cylindrical, narrow at their proximal end and deciduous, arising from 

 the sides or from the distal end of an internode. Tentacles 8. Gizzard wanting. Orifice more 

 or less quadrangular. 



The present genus was named after Dr Walker, and appears as Walkeria in Fleming's 

 original account (1823). In his later work (1828) Fleming uses the form Valkeria without even 

 mentioning the fact that it had at first been spelt differently. Valkeria has been universally 

 adopted by later writers, and it appears to me most undesirable to revert to the original spelling. 



1. Valkeria atlantica Busk. (PI. VI, figs 5 — 12). 



Farrella atlantica Busk, 1886, Challenger Rep., L, p. 7, /t PI. VII, figs 3 — $g. 

 ? Farrella atlantica Thornely, 1905, Herdman's "Rep. Pearl Oyster Fisheries G. Manaar", 



Suppl. Rep. XXVI, publ. Roy. Soc, p. 128 (110 description). 

 ? Farrella atlantica Thornely, 1907, "Rep. Mar. Pol. Ind. Mus.", Ree. Ind. Mus. I, p. 196 



(Burma; no description). 

 ? Farella atlantica Thornely, 1912, "Mar. Pol. Ind. Ocean", Trans. Linn. Soc. 2 Ser., Zool., 



XV, p. 157 (no description). 



' ' > Stat. 7. Near reef of Batjulmati, Java (from reef). On 435. A., Farcimia; etc). 



380. G. Stat. 47. Bay of Bima, 55 Metres; mud with patches of fine coral-sand. (Growing in 

 profusion on Hydroids.) 



20. E. ) 



23. A. Stat. 50. Bay of Badjo, W. coast of Flores, o — 40 Metres ; mud, sand and shells. 

 325. M.) 



1) As by Loppens, 1908, "Rry. d'eau douce", Ann. Biol. lacustre, III, p. 149. 



73 



SIBOGA-EXPEDITIE XXVIII Cl. 



