•272 THE VOYAGE OF H.M.S. CHALLENGER. 



Styela grandis. 



lactea. 

 convexa. 

 Polycarpa quadrata. 

 minuta. 

 radicata. 

 Ascidia ckaMengeri. 

 placenta. 

 11 igra. 



tneridionalis. 

 falcigera. 

 tenera. 

 cylindracea. 

 despecta. 

 Ciona flemingi. 

 Ecteinascidia crassa. 



In this list nine genera and four families are represented. 



III. — Between 500 fathoms and 1000 fathoms eight species were found, viz.: — 



Molgida piriformis. 

 Culeolus ivyville-thomsoni. 

 Styela Jlava. 



oblonga. 



glans. 

 Ascidia meridionalis. 



tenera. 

 Hypobytlwis moseleyi. 



In this list five genera and three families are represented. 



IV. — Between 1000 fathoms and 2000 fathoms six species were found, viz.: — 



Culeolus recuml>ens. 



perlucidus. 



perlatus. 

 Fwngulus cinereus. 

 Buthyoncus mirabilis. 

 Corynascidia sidimi. 



In this list four genera and two families are represented. 



