ENCRUSTING ORGANISMS 



133 



Specimens ; one would therefore expect to find a certain number of Polyzoa on at least 

 some of the specimens in each case. 



The Polyzoa and Tunicata listed below have been determined by Dr Anna B. Hastings 

 of the British Museum (Natural History). 



POLYZOA 



var. 

 var. 



SchizoporcUa hyalina var. discreta 

 Ciisia sp. 



Mcmbraiiipora galeata, Busk 

 *Schizopoyella hyalina (Linn.) var. 

 Osthimosia sp. 

 Figularia sp. 



Schizoporella hyalina (Linn.) var. 

 Figularia sp. 



Schizoporella hyalina (Linn.) var. 

 Schizoporella hyalina var. discreta 

 Schizoporella hyalina var. discreta 

 Schizoporella hyalina (Linn.) var. 

 Schizoporella hyalina var. discreta 

 Osthimosia sp. 



Membranipora galeata. Busk 

 Alcyonidium sp. 

 Barentsia discreta (Busk) 

 Membranipora galeata. Busk 

 Schizoporella hyalina (Linn.) 

 Schizoporella hyalina (Linn.) 

 Cellar ia sp. 



Schizoporella hyalina (Linn.) var. 

 Osthimosia sp. 

 Osthimosia sp. 

 Supercytis sp. 



Schizoporella hyalina (Linn.) var. 

 Osthimosia sp. 



Schizoporella hyalina (Linn.) var. 

 Tubulipora sp. 

 Amastigia nuda, Busk 

 Crisia sp. 



Schizoporella hyalina (Linn.) var. 

 Schizoporella hyalina var. discreta 

 Schizoporella hyalina (Linn.) var. 



Schizoporella hyalina var. 

 Schizoporella hyalina var. 

 Alcyonidium sp. 

 Osthimosia sp. 

 Schizoporella hyaliiia var. 



(Busk) 

 "1 



1 



? / 



. } 



(Busk) 

 (Busk) 



? 



(Busk) 



/ 

 (Busk) 



on Decolopoda antarctica St. 140 



on Decolopoda antarctica St. 123 



on Decolopoda antarctica St. 39 



on 

 on 



on 

 on 



on 



on 



on 



on 

 on 



on 

 on 



Decolopoda antarctica 



Decolopoda antarctica 

 Decolopoda australis 

 Colossendeis glacialis 

 Colossendeis glacialis 



on Nymphon charcoti 



Nymphon charcoti 

 Nymphon charcoti 



Nymphon australe 



Nymphon australe 



Nymphon australe 



Pallenopsis patagonicum 

 Pallenopsis patagonicum 



Pallenopsis patagonicum 



Ammothea gigantea, n.sp. 



Ammothea carolinensis 

 A?nmothea minor 



Ammothea minor 



Ammothea striata 



Holotype of Ammothea 

 stylirostris, n.sp. 



St. 149 



St. 164 • 

 St. 154 



Sts. 155 and 148 

 St. 149 



St. 39 



St. MS 68 

 St. 19s 



St. 45 



St. 182 



St. 42 



St. 84 

 St. 167 



St. WS 84 



St. 371 



Cumberland Bay 

 Sappho Point and 



St. 371 

 St. 190 



St. 167 



St. 39 



TUNICATA 



The Tunicates on Nymphon charcoti, St. MS 68, TV. hiemale, St. 39, and Amtnothea gigantea, 

 St. 371 all belong to the family Polycitoridae (Distomidae). 



* Schizoporella hyalina var.? is very near the typical British form. By Schizoporella hyalina var. 

 (unqueried) I have indicated a distinct variety for which, at present, I have not found a name. [A. B. H.] 



