the Trondhjem Fiord. 445 



" 7. Ascidiella, sp. 



" One specimen from Rodbergj 150-200 fathoms, is possibly 

 a new species characterized by its very large stigmata, of 

 which there are only two in each mesh, and by the very 

 slender bar of the branchial sac. 



" 8. Ct'ona I'ntesfinah'Sj Linn. 



" Trondhjem, 20-40 fathoms, under western shore. 



" 9. Corella parallelograuiina, 0. F. i\[iill. 



*' One from Trondhjem, near Mmikholmcn, 20-40 fathoms. 



"AsciDiiE Com POSIT iE. 



" l\im. Didemniidae. 



" 10. Leptoclinum tenue, Herdman *. 



" Rodberg. This species was previously known from the 

 coast of South America and from the Faroe Channel. 



" Fam. Polyclinidae. 

 "11. Amaroucium poinum, M. Sars (?) f- 

 " From Rodberg. 



[Note hj A. M. N, — Two specimens growing side by side 

 dredged in shallow water, each thus far agreeing with Sars's 

 description : — " Polyparium magnitudine pugni, luteo-cine- 

 reum, subcartilagineum, globosum, absque pedicello, papillis 

 parum eminentibus obtcctum. Animalia flava (straminea)." 

 From a memory of this description, at the moment when 1 

 dredged them, it flashed into my mind that these hue large 

 compound Ascidians were Sars's species ; but further than 

 that I cannot say, as I did not dissect out the animals belbre 

 sending them to Professor Herdman.] 



"12. Psammaplidium, sp. n. 



" From Rodberg. All the species of this genus previously 



* Report 'Challenger' Tiinicata, \>t. ii., Ascidi;u Cmnpositie, 1SS(), 

 p. 281, pi. xxxix. Ilgs. 8-11, pi. xl. 11^,^3. 3-'). 



t Beret. Soiniii. 184V) t'oretngen Zool. liciyo i Lot'uteu og Fiuiiiarkeu 

 (Nyt Mag. for Naturvid. vol. vi., iH.jl ), p. ."J."). 



