138 S. Ti WOODWARD ON SHELLS, ETC. 



Margarita undulala. Fragment Pilidium fulvum. 



and fry. Serpula. 



M. cinerea. Fry. Spirorbis. 



Scissurella crispata. Balauus porcatus. Tergum and 



Littorina obtusata. Fry. fragments of parietes. 



Cemoria noachina. Fry. Echinus. Fragments of spines. 



XII. — A Revised Catalogue of the Tunicata of Green- 

 land. By Dr. Chr. Lutken, University Museum, 

 Copenhagen. 1875. 



TUNICATA. 



Ascidiae simplices (Greenl. Nakasursak). 



1. Boltenia Bolteni, L. 



F. Gr. 323 (A. clavata, Fabr.). 



B. reniformis et ciliata, MoUer, Ind. Moll. Gr., p. 95. 



2. Cynthia chrystallina (Moll.). 



Clavellina chryst., Moll. 1. c, p. 95. 



3. C. rustica (L.). 



F. Gr. 316 and 317 (?). (Jun.?) (A. quadridentata, 



Fabr.) 

 A. monoceros, Moll. 1. c, p. 95. 



4. C. pyriformis (Rthk.). 



Jun. ? F. Gr. 322 (A. viUosa). 

 Obs. — A specif s from East Greenland is described by Kupffer 

 as C. villosa, Fabr. (Zte deutsche Nordpolarfahrt, II., p. 244). 



5. C. echinata (L.). 



F. Gr. 318. 



6. C. concliilega (Moll.). 



Moller, 1. c. 



7. C i^Molgula) glutinans, Moll. 



Moller, 1. c, p. 94. 



8. C. tuberculum (Fabr.). 



F. Gr. 321. 



9. C. Adolphi, Kupf. 



Zte deutsche Nordpolarfahrt, II., p. 245. 



10. Phallusia lurida (Moll.). 



Moller, 1. c, p. 95. 



11. Ph. complanata (Fabr.). 



F. Gr. n. 320. 



12. Chelyosoma Macleayanum, Sow. Brod. 



Cp. Eschricht's paper in K. D. Vid. Selsk. Skr. V. 

 (1841). 



13. Pelonaia, sp. 



(An undetermined specimen from Jacobshavn in the Museum 

 of Copenhagen.) 



Obs. — The Ascidice of Greenland require revision, with exami- 

 nation of fresh specimens ; several of the above-named species 



