1 10 Rev. T. Hincks on Polyzoa 



occun'cd in the Shetland waters ; Caberea ElUsli is common 

 to Shetland and the Hebrides, and Lcprali'a tubulosa to Shethind 

 and the north-eastern part of Scotland (Wick). The folio win^j 

 may be regarded as forming a distinctively Arctic group : — 

 Menipea arctica, M. Sophia', Lepralia sincera, Cc-Uepora in- 

 crassafa, and perhaps Myriozoum coarctatum. Twelve of the 

 Icelandic species have been found on the North-American coast. 

 It should be mentioned that the dredging which supplied 

 the material for the above list was contained in a single bottle 

 of very moderate size. 



Labrador Species. 



The forms recorded in this list were taken in Hamilton's 

 Inlet, at a depth of 15 fathoms, by Dr. Wallich. 



IXFUNDIBULATA. 



Cheilostomata. 

 1. Menipea ternata, Ellis & Sol. 



2. Cellularia Peachiij Busk. 



3. Gemellaria loricata, Linn. 

 4. Lepralia annulata, Fabricius. 



5. Lepralia propinqua, Smitt. 



6. Lepralia hyalina, Linn. The prevalent form. 



7. Lepralia per tusa, Esper. 



8. Lepralia radiatula^ Hincks. 



9. Memhranipora lineata^ Linn. 



10. Memhranipora cyvihaformis^ Hincks. 



11. Cellepora scahraj Smitt. 



This belongs to the same group as C. plicata and C. ovata 

 of Smitt, the three being ranked as varieties of one and the 

 same species by this writer. 



In the present form the zoooecia are very short, convex, 

 crowded, and suberect; the mouth orbicular, slightly compressed 

 in front ; immediately below the inferior margin rises a some- 



