INVERTEBRATE FAUNA OF LABRADOR. 263 



This list is necessarily very imperfect, giving but a slight notion of the riches which 

 must ultimately reward careful exploration in so interesting a field. 



Many of the species have been compared with specimens from Greenland recerved 

 through the kindness of Dr. C. Lutken, Assistant in the Zoological Museum of the Royal 



^Z^Z^T^r^ the identification of several species of Amphipoda has 

 been kindly communicated through Dr. Lutken by Mr. A. Boeck and similar notes regard- 

 inTthe PoLoa by Mr. F. A. Smitt, who has detected an alternation of generations among 

 the Polyzoa, some of the asexual forms of which are indicated below. 



Polypi. 



* Metridium marginatum Vbrrill. 



Actinia marginata Say. 



This species occurred quite frequently as for north as Square Island in fifteen to thirty 

 fathoms, and Indian Harbor, and in its size and general appearance agreed with specimens 

 dredged at different points on the coast of Maine. The forms when expanded to their full- 

 est ex nt closely resembled figures of A. dianthus, as the disk was subdivided into lob ul 

 of a high pinkish color, while in younger specimens the disk was entire and the polyp wa 

 of the usual amber hue. One young specimen when expanded was » J»»£™* ** he 

 partitions could all be clearly distinguished, as also the ovaries attached to certam of them 

 Itedisk was elevated above the eight rows of tentacles, each of which had a hyaline, smoky 

 spot at its base. 



Bhodactinea (Teal,a) Davisii Agass. Verr.ll. Mem. Bost. Soc. Nat. Hist. I: 18; 1864. 

 Probably Tealia crassicornis Gosse. 



Large specimens dredged at Caribou Island in eight fathoms, gravelly bottom and at 

 Sauarf Island in from fifteen to thirty fathoms on a shelly bottom, had three row of hick, 

 sW blunt tentacles, each with three red circular bands, the outside o the polyp being 

 entirely smooth with slashes of deep red on a carneous ground. Small specimens weie 



wholly red. 



Edwardsia sipunculoides Stimps. 



Actinia sipunculoides Stimps. Marine Invertebrates of Grand Menan, p. 7, PL I, fig. 2. 



A specimen, too imperfect for description, about .75 inch long and .10 inch in diameter, 

 is to ding to Professor A. E. Verrill, allied to, or identical with, tins species The tenta- 

 cl'es are apparently twenty-four in number. Epidermis destroyed. Four fathoms, Henley 

 Harbor, Chateau Bay. 



Hydraetinia polyelina Agass. 



Hydractinia ecliinata Stimps. Syn. Inv. Grand Menan. 



Found on an ascidian, and also on Aporrhais, in fifteen fathoms, Salmon Bay. It occurs 

 along the whole coast. 



MKMOIRS BOST. SOC. HAT. BIST. Vol. I. Pt. 2. 07 



