MARINE INVERTEBRATA OF GRAND MANAN. 9 



S. FALLAX, Johnst., 1. c, 73. A few specimens, probably of this species, were 

 taken in deep water. 



S. RUGOSA, Lin. Johnst. This species is common in deep water here, and on 

 most parts of our coast, from Massachusetts Bay to the Grand Bank. 



S. POLYZONIAS, Johnst., 1. c, 61. Many forms occurred at Grand Manan, in from 10 

 to 40 fothoms, all of which may be referred to this species, as described by Johnston 

 in the second edition of his work. But my own observations upon many specimens, 

 and the consideration of the genera and species of naked-eyed medusas, the polype 

 forms of which are not yet known, convince me that this species, so called, is in 

 reality a genus, and its varieties true species. The diflftculty of identifying our 

 species by the descriptions of European writei's in the absence of specimens for 

 comparison, prevents me from naming and describing the forms I have determined. 



ORA.TllMARIA, St. n. 



o- 



Polypidom rectilinear, elongated, cylindrical, composed of aggregated tubes, gene- 

 rally without branches, which, when they occur, are of the same character as that 

 from which they spring. Cells arranged on all sides, in more or less regular and 

 equidistant longitudinal rows, giving a section of the stem a star-like appearance. 



G. ROBUSTA, St., n. s.. Fig. 3. Cells large, cylindrical, curving outward, ecjual- 

 ling in length the diameter of the stem, annulated with one or two lines of growth 

 near their apertures. They are arranged in four or five very regular rows, being 

 alternate in contiguous, and opposite to each other in opposite rows. Color light 

 brown, cells paler and translucent. Dredged not unfrequenlly in the laminarian 

 zone. 



G. GRACILIS, St., n. s. Polypidom slender, with a polished appearance; cells 

 small, elongated, projecting, but curving inward at their extremities, and distant 

 from each other in the very irregular rows. Color dark brown, sometimes black. 

 One specimen only was taken, which occurred in the laminarian zone. 



EuDENDRiuM ciNGULATUM, St., n. s. Polypidom small, very irregularly branched, 

 somewhat as in E. rameum, but not so thickly ; branchlets strongly ringed, some- 

 times throughout their length, always near their origins; polypes small, with long 

 tentacles and broad blunt proboscis. It differs from E. rameum in the more nume- 

 rous rings on the branchlets, and from E. ramomm in the mode of branching. 

 Dredged in 20 f , on a shelly bottom off Duck Island. 



TuBULARiA iNDiviSA, (?) Lin. Johnst., 1. c, 48. Found chiefly in the lamina- 

 rian zone. 



T. LARYNX, Ellis. CoralL, pi. xvi., f h. Dredged in 25 £, on the Hake Ground. 



CoRYMORPUA NUTANS, Sars, Beskrivelser og Jagttagelser, etc., 7, pi. i., f. 3. This 

 singular animal has been hitherto found only on the coast of Norway, and among 

 the Orkney Isles. The announcement of its occurrence on our coasts cannot but 

 prove interesting to our marine zoologists, especially as it may be taken in the 

 greatest abundance in some localities here, while it seems a rare animal in Europe. 

 It lives on a sandy bottom, in from 4 to 15 ftithoms. Off West Quoddy Head, a 



