[77] ALBATROSS EXPLORATIONS. 579 



the inshore plateau, and to the effect of the Gulf Stream in winter, are 

 doubtless the causes of this peculiar assemblage. 



These shallow-water shells, which are mostly of small size, have been 

 studied with care by Miss K. J. Bush, who has identified many of the 

 known species and described several of the new ones. I am greatly 

 indebted to her for the accompanying list of the species already deter- 

 mined, but the study of these shells is not yet completed, and this list 

 must, therefore, be regarded only as a partial one.f 



The representatives of other groups were of less importance than the 

 shells, but several interesting southern si^ecies of Echiuoderms and 

 Anthozoa were taken, of which the bathymetrical range is little known. 

 Among these were specimens of the branched coral, Oculina impUcata Y., 

 and the leaf-like Benilla reniformis Cuv. The southern shallow- water 

 star-fishes, Luidia clatlirata Say and Astropecten articulatus Say, also 

 occurred in these localities, in 14 to 25 fathoms. During the more ex- 

 tended explorations in the same region in 1884, Ophiothrix angulata and 

 Amphiura elegans (= tenuis Ayres) occurred in 16 fathoms, while the 

 curious West Indian Astroporpa annulata occurred several times, of 

 large size, clinging to the Gorgonian, Tiianicisum suberosum V., in 48 to 

 08 fathoms. 



LIST OF THE SHALLOW-WATEB MOLLUSC A DREDGED OFF CAPE HAT- 

 TER AS BY THE "ALBATROSS" LN 1883. 



By Miss K. J. Bush. 



The following list is not intended as a complete list of the shells of 

 this region, but is nearly complete for the work of 1883. Many addi- 

 tional species were dredged in the same region, in the autumn of 1884. 

 The bathymetrical range refers only to the collection of 1883. Most of 

 the common species also occur in very shallow water in the harbor of 

 Beaufort, N. C, or even at low-water mark. An asterisk (*) indicates 

 specimens living; a dagger (t), dead shells only. 



CEPHALOPODA. 



Sthenoteuthis Bartramii (Lesueur) Yerrill. 

 Surface.* 



GASTEOPODA. 

 TOXOGLOSSA. . 



Cotms Delessertii (?) Eecluz. 

 B. range, 48 fathoms.* 



t Another and more extensive series of dredgings in shallow water in the same re- 

 gion was made by the "Albatross" in 1884, by -which a much larger collection was 

 obtained, including, besides many additional MoUusca, a great variety of interesting 

 Crustacea, among which there are many species not before known from the Atlantic 

 coast of the United States. The additions to the Brachyura are especially interesting 

 and numerous. Many are Floridian and West Indian species. 



