508 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



Many otlier species were also common, or even abundant, in the varioas 

 localities, and quite a number proved to be undescribed, and tlieEefore 

 their descriptions will be found inthe systematic catalogue accompany- 

 ing this report. Among these were Lycklice Americana, Nlnoc nigri^yes, 

 Anthostoma, sp., Acutum, Ammotrypane fimhriata, Travisia carnea, 

 Eone gracilis, Brada setosa, Nicomaclte dispar, Bliodine attenuata, a 

 species of Ammochares, Ampharete gracilis, Euclione elegans, and a 

 species of Nematonereis. 



Several species of Nemerteans also occur on these bottoms. The largest 

 and most interesting is a large species of Meclcelia, {M. lurida, Y.) This 

 grows to the length of 8 or 10 inches, and .25 broad ; its color is deep 

 chocolate- brown,with paler margins. It generally breaks up into numerous 

 fragments wlien caught. Another species, belonging, jjerhaps, to the 

 genus Cerehratulus, but not sufficiently studied while living, was 2 or 3 

 inches long in extension, and .05 to .08 of an inch broad. Its color was 

 dark olive-green, darkest anteriorly, the head with a white margin. 

 The lateral fossaj of the head were long and deep ; the eyes incon 

 spicuous, perhaps wanting; proboscis emitted from a terminal pore; the 

 ventral orifice, or mouth, placed well forward. Both this and the pre- 

 ceding were found at the 29-fathoni locality, in sand}^ mud, but the 

 former also occurred in soft mud, in 19 fathoms. 



One of the most abundant Gastropods is Keptunea pygmcca, (Plate 

 XXI, fig. 115,) which is a rather northern shell, very common in the 

 Bay of Fuudy. The specimens from this region are, however, quite as 

 large as any that I have seen from liirther north. The small disk-shaped 

 egg-capsules of this shell were found in great abundance early in Sep- 

 tember attached to various bivalve shells, as well as to the shells of the 

 Keptunea itself. 



Buccinum imdatum, (Plate XXI, Fig. 121;) Bela luirpularia, (Plate 

 XXI, fig. 108;) Lunatia iminaculata, (Plate XXIII, fig. 131;) Margarita 

 ohscura, (Plate XXI Y, fig. 15G;) Astyris rosacea; and Cyliclma alba, 

 (Plate XXV, fig. 103,) are all northern shells, which were met Avitb in 

 small numbers on the muddy bottoms. 



The Lamellibranchs were quite abundant. One of the most con- 

 spicuous is the northern Cyprina Islandica, (Plate XXYIII, fig. 201,) 

 which was quite common at several localities, especially in soft mud. 

 Many of the shells from the deeper dredgings in this region are north- 

 Fig. 3. ern and even arctic species, several of which have been 

 supposed not to occur south of Cape Cod. Among 

 these northern forms are Macoma proxima, of which 

 we dredged a few small specimens; Cyclocardia horealis 

 and C. Novangliw (p. 418.) both of which were common; 

 Istarte undata, (Plate XXIX, fig. 203,) which was 

 dredged in considerable abundance at several localities. 

 A large proportion of the shells of this species, 

 obtained here, were quite different in appearance from the varieties 

 that occur in such abundance in the Bay of Fund3\ The latter, 



