On neiv Hydruida and Polyzoa from Barents Sea. 211 



GASTROPODA. 



The following species are mentioned by Dr. van Lidth de 

 Jeude which were not found in Mr. Grant's collection : — 

 Siphonentalis ajjinis and Hero Jbrmosa, Love"n, the latter in 

 the Matotschkin Shar, where also other species of Nudibran- 

 chiata occurred. 



CONCHIFERA. 



Dr. van Lidth de Jeude mentions Pecten islandicus 1 P. 

 septemradiatus and P. abyssorum?, Cardium ciliatum, and 

 Panopea norvegica as occurring in Barents Sea. 



On examining the list of animals collected by Mr. Grant it 

 will be found that there are enumerated 153 species, namely — 

 Protozoa 1, Spongia 4, Hydrozoa 13, Actinozoa 2, Echino- 

 dermata 16, Annelida 15, Gephyrea 1, Crustacea 24, Polyzoa 

 32, Brachiopoda 2, Mollusca 36, Pisces 7. 



Considering the limited means at Mr. Grant's disposal, and 

 the confined space on board the little vessel, in which fourteen 

 persons were cooped up, it will probably be acknowledged that 

 he has achieved satisfactory results by his efforts to secure 

 specimens for the Exeter Museum. 



XXXIII. — On new Hydroida and Polyzoa from Barents Sea. 

 By the Rev. Thomas Hincks, B.A., F.R.S. 



[Plate XV.] 



A full list of the Hydroida and Polyzoa obtained by Mr. W. 

 J . A. Grant in the Arctic seas, during the expedition of the 

 Dutch exploring-vessel the ' Willem Barents,' is included in 

 Mr. D'Urban's report, published in the present Number of the 

 'Annals.' This paper will contain a detailed description of 

 the new forms which occur in the collection. 



Subkingdom CCELENTERATA. 



Class Hydrozoa. 



Order HYDKOIDA. 



Suborder Thecaphora, Hincks. 



Sertularella, Gray. 



Sertularella auadricornuta^ n. sp. (PI. XV. figs. 1, la.) 



Stem almost straight or very slightly sinuated, irregularly 



