110 Miscellan eous. 



animals from the eggs. It is thus that Clapar^de, in his ' Beohach- 

 tungen iiber Anatomie und Entwieklungsgeschichte wirbelloser 

 Thiere an der Kiiste von Norraandie angestellt ' (pp. 63-69, pi. viii. 

 figs, 12, 13, and pi. ix.), describes and figures, as stages in the 

 evolution of TereheUa concMlecja, some young Annelids which really 

 have no genetic connexion with this type. 



M. Giard has recently found the same Annelid at Wimereux. 

 It lives in the adult state upon the Hydroid Laomedea c/elatinosa, 

 on the branches of which small transparent projecting tubes may 

 often be found, although, as they exactly imitate the gonotheca) of 

 the Hydroid, they may easily escape observation. Each tube is in- 

 habited by a pretty transparent Annelid, which only differs from 

 the supposed embryo of Tertbella concMlega (Claparede, pi. ix. fig. 6) 

 by having its seven tentacles nearly of equal length, at least the 

 median one does not nearly so much exceed the six lateral tenta- 

 cles in length. The presence of the generative products in many 

 individuals proves that they are adult. The existence of volumi- 

 nous otocysts precisely like those of Mollusca, and the arrangement 

 of the tori uncinigeri at the extremity of the ventral cirri of the 

 posterior part of the body, lead to the location of this Annelid in a 

 new genus much further removed from the TerehellcB than might be 

 supposed, and presenting afiinities with several families of Poly- 

 chaBta. This genus M. Giard names Wartelia, in honour of one of 

 his pui)ils, M. Adolphe Wartel, who discovered the Annelid on the 

 Laomedea at Wimereux ; the species is named W. gonotheca, in 

 allusion to the curious mimicry above mentioned. The arrange- 

 ment of the tubes of Wartelia also gives them a certain resemblance 

 to the tubicolar Rotifera, 



This discovery leaves the embryogeny of TereheUa concMlega com- 

 pletely unknown ; and the best observations which we possess on 

 the development of TereheUa are those of Milne-Edwards on T. 

 nebidosa, Mont. 



Wartelia is probably allied to a tubicolar Annelid of the Medi- 

 terranean described by Busch*, and to the genus Lumara of Stimp- 

 son t. Perhaps also the larva figured by Agassiz % as the embryo 

 of T. fulgida, Ag., is the embryo of a form allied to Wartelia.- — 

 Comptes Kemh's, May 6. 1878, p. 1147. 



On the MoUuscan Fauna of New Guinea. 

 By M. C. Tappabone-Canefri. 



The author gives the following as the results of his examination 

 of the Papuan Mollusca and especially of a fine collection of 320 



• Beob. iiber Anat. und Entw. einiger wirbell. Seethiere (Berlin, 1851), 

 p. 71, pi. xi. fig. 7. 



t Marine Invertebrates of Grand Manan, p. 30. 



X " On the Young Stages of a few Annelids," Ann. Lvc. Nat. Hist. 

 New York, vol. vni. pp. 320, 321, pi, vii. figs. 19, 19a. 



