36 MARINE INVERTEBRATA OF GRAND MANAN. 



dorsal line. The ventral pinnte are short and provided with strong hooked setsB. 

 Tlie}^ completely surround the ventral surface of the animal. The mouth is at 

 about the anterior sixth of the length of the animal below, and from it the anterior 

 feet radiate, as from the head above. The branchia) probably resemble those of 

 EiqJirosijiie, to which genus this has, perhaps, the nearest relations. These organs, 

 however, and some other details, could not be made out from the single specimen 

 obtained. 



Crtptonota citrina, St., n. s.. Fig. 27. Of a beautiful lemon-yellow color, re- 

 sembling very much that of some sponges which occurred with it. Head, flake- 

 white ; back, beneath the setae, dark brown. Segments about thirty in number. 

 Length, 0.45 inch ; breadth, 0.25 inch. Dredged on a gravelly and somewhat 

 muddy bottom, in thirty-five fathoms in the Hake Bay. 



EuPHROSYNE BOREALis, Ocrsd., Groul. Ann. Dors., 18, pi. ii. f. 23-27. This spe- 

 cies is not uncommon in deej) water, and often occurs of a size double that given 

 by Oersted. It frequents muddy bottoms. 



PHOLoii; TECTA, St., n. s. Back entirely covered by the elytra, those of the oppo- 

 site sides overlapping as well as the consecutives. Segments about thirty-six in 

 number, on which are about twenty-two pairs of elytra, there being anteriorly one 

 to ea'^h alternate segment, while posteriorly every ring has one. These elytra or 

 scales are broad, sinuated broadly in front, and remotely ciliated behind. Superior 

 pinna arched, dotted with black along the summit at the base of the row of long 

 curved capillary setae. Inferior pinna with a plume of few long falcigerous setge. 

 Head ovate, with two very large oval eyes, and terminating anteriorly in a short 

 pointed tentacle. Tentacular cirri rather short. Color, brownish and black, varie- 

 gated, darkest anteriorly. Length, 0.28 inch; breadth, 0.035 inch. Dredged in 

 4 f., on a bottom of coarse sand and nullipores. 



Oersted gives " branchiarum squamiformium paria maximam dorsi partem nudam' 

 reliquentium" as a generic character of Pholoe. But as this species agrees with that 

 genus in its remaining characters, the size of the dorsal scales would seem to be of 

 little importance in the ApJirodifacca'. As another instance of this, I would men- 

 tion the large Acoiites {A. lupina, St.) of South Carolina, which has scales so small 

 as to leave the back nearly bare, and yet agrees in all other important particulars 

 with A Pleei, Aud. et M. Edw., which has remarkably large scales. 



Lepidonote cirrata, Oersd. Aphrodita cirrata, MiLll., 0. Fabr., F. G., p. 308. 

 Of a bright pink or violet color; taken about low-water mark. 



L. PUNCTATA, Oersd. Polynoe squamaia, Gould, Inv. Mass. Very common under 

 stones at low water, and some ways above it. Sometimes also in the Laminarian 

 zone. 



L. SCABRA, Oersd., Gronl. Ann. Dors., 12, pi. i. f. 2, 7, 10, 12, 13, 17, 18. Aphro- 

 diia scabra, 0. Fabr. Taken occasionally of a very large size, on gravelly bottoms 

 in the coralline zone. One specimen occurred at low-water mark. 



Apurodita aculeata, Baster. Gould, Inv. Mass., 343. A fine large species, often 

 four inches in length, which is taken occasionally in deep water. It is identical 

 with the above species, at least as fiir as can be judged from figures. The numerous 



