112 Transactions of the Canadian Institute. [vol. ix 



distributed. Two colonies of Aplidium spitzbergense were obtained near 

 Grand Manan. Didemnopsis tenerum occurred at Grand Manan and 

 in the approaches, though sparingly. 



Of the Cionidae, a single specimen of Ciona intestinalis was dredged 

 near Grand Manan. Verrill has reported it as abundant in the Bay of 

 Fundy. 



Of Phallusiids [Ascidiids], Ascidiopsis prunum was obtained in 

 quantity at low tide and considerable numbers were taken in the dredge. 

 Phallusioides obliqua was common at Grand Manan and a few specimens 

 were obtained in the approaches, but none near the station. 



Of the Chelyosomatidae, a single specimen of Chelyosoma maclea- 

 yanum was dredged in the approaches. 



Caesirids [Molgulids] are very abundant. At low tide were found 

 Caesira papulosa, C. littoralis, C. canadensis and C. retortijormis. In 

 addition to these, the dredgings gave in the approaches, at L'Etang 

 and near Grand Manan a fifth species, C. pannosa. At the last locality, 

 a number of Eugyra pilularis were dredged in lo fathoms, sand. 



Of Styelids, Dendrodoa carnea was rather numerous at low tide, 

 and occurred sparingly, but well distributed, with Goniocarpa placenta, 

 in the dredgings. Two specimens of Cnemidocarpa mollis and numbers of 

 Pandocia fibrosa were found near Grand Manan. 



The Tethyids [Cynthiids] are well represented. Boltenia ovifera, 

 B. hirsuta and Tethyum pyriforme americanum occurred in large numbers 

 at low tide and were found generally distributed on hard bottom. 



To sum up, the following are obtainable in fairly large numbers 

 near the station : — 



Amaroucium glabrum, 



Tetradidemnum albidutn, 



Holozoa clavata, 



Ascidiopsis prunum, 



Caesira papulosa, 



C. littoralis, 



C. canadensis, 



C. retortijormis, 



Dendrodoa carnea, 



Boltenia ovifera, 



B. hirsuta. 



Tethyum pyriforme americanum. 



The following can be procured less easily (those found at Grand 

 Manan only are not included) : — 



Didemnopsis tenerum, 



Phallusioides obligua. 



