VIII 



REMARKS UPON APPENDICULARIA AND DOLIOLUM, 

 TWO GENERA OF THE TUNICATA 



Philosophical Transactions of the Royal Society, 1851, pt. ii. pp. 595-606 



79. The genus Appendicularia was first formed by Chamisso from 

 an animal found by him near Behring's Straits, and thus described : 

 " Corpus gelatinosum, subovoideum, vix quartam polhcis partem 

 sequans, punctis rubescentibus (interaneis) transparentibus. Appen- 

 dix gelatinosa cestoidea, rubro marginata corpore duplo vel triplo 

 longior. Motu flexuoso natationi inserviens. Motus animahs vividus." 

 And he adds, " genus ultra recognoscendum, generi Cestum (Les.) 

 forsitan affine." The specific name " flagellum " was conferred upon 

 the animal, and it was figured (P. XXXI.), though very indifferently.' 



Ten years afterwards (in 1828) Mertens, voyaging in the same 

 regions, rediscovered this animal, and he subsequently published a 

 long account of it^ under the name of Oikopleura Chamissonis. 



The only other notice of the genus (so far as I am aware) is that 

 given by MM. Quoy and Gaimard.^ It was observed in immense 

 masses off Algoa Bay, South Africa, and was called by them 

 Fritillaria, until they afterwards became acquainted with the de- 

 scriptions of Chamisso and Mertens. Recognising as they do the 

 priority of discovery of the former, they yet adopt the name conferred 

 by the latter, and, without any very just reason, give to the specimens 

 observed by themselves a new specific name, 0. bifurcata. 



Vast numbers of the species observed by myself were found on the 

 coast of New Guinea and in the Southern Pacific. The differences 



1 De Animalibus quibusdam e classe Vermium, Fasc. Secundus. Nova Acta Acad Cur 

 torn. X. 1821. 



2 In the Memoires de I'Acad. Imp. de St. Petersbouig 1831. 

 ' Zoology of the Astrolabe, vol. iv, p. 304. 



