LARVAL FORMS 



523 



tinia, etc.), feeding as the adults do : afterwards losing these 

 elongated tendrils in a moult, they pass into the gastral cavity 

 of the Hydroid ; in our native species the larva issues from the 

 Hydroid and begins its independent life at a stage when three 

 pairs of ambulatory legs are present and the fourth is in bud/ 

 The Phoxichilidium larvae were first noticed by Gegenbaur in 

 Eudendrniinf again by Allman in Coryne eximia^ George 

 Hodge made detailed and important observations/ and showed, 



Fig. 28L — Larva of Phoxichilidium sp., showing teiulril-like appendages of the 

 larval palps and ovigerous legs. (After Dohrn.) 



in opposition to Gegenbaur, that it was the larva which entered 

 the Hydroid and not the egg that was laid therein.^ 



Moseley has the following interesting note in his Cliallenger 

 Report : ^ " The most interesting parasite observed was a form 

 found in the gastric cavities of the gastrozoids of Fliohofhrus 

 symmetricus (West Indies, 450 f.), contained in small capsules. 

 Tliese capsules were badly preserved, but there seemed little 



1 A slightlj' different account is given of the Australiau P. plumulariae by 

 V. Lendenfeld {ZeitscJir. wiss. Zool. xxxviii., 1883, pp. 323-329). 



- Zur Lclire vom Generationsivechsel unci Fortjifianzumi hei Mcdusen vnd 

 Polypen, 1854. 



^ Rep. Brit. Ass. 1859; cf. " Gymnoblastic Hydroids," Z'rt?/ Soc. pi. vi. fig. 6. 



-• Trans. Tyncsidc Field Club, v. (1862-3), 1864, pp. 124-136, pis. vi., vii. ; Ann. 

 Mag. Nat. Hist. (3), ix., 1862, p. 33. 



^ See also Hallez, Arch. Zool. Exp. (4), \., 1905, p. 3 ; Lonian, Tijdschr. Ned. 

 Dierk. Ver. (2), x., 1906, p. 271, etc. 



« "On Hydroid and other Corals," 1881, p. 78. 



