BIGELOW: COAST WATER EXPLORATION OF 1913. 319 
of its deep-water habit, this southern neritic group was limited to a 
coastal-zone south of New York, some forty-five miles broad (Fig. 79, 
Stations 10069, 10072, 10073, 10074, 10075, 10076, 10077, 10078, 
10079, 10080, 10082). We found none of these species north of New 
York; but most of them appear along the southern shores of New 
England later in the season. The most important of the group, fau- 
Fig. 79.— Occurrence of some neritic Medusae, July—August, 1913. 
a, Aequorea groenlandica, southern form. . 1, Liriope scutigera; L, Laodicea 
cruciata; m, Melicertum campanula; p, Phialidium languidum; s, Stauro- 
phora mertensii. 
iy nistically, Aequorea groenlandica, was confined to the waters over the 
bay half of the continental shelf south of New York; spreading sea- 
ward to the slope off Chesapeake Bay, but absent in the edge of the 
Gulf Stream (Station 10071) and in the tongue of ocean water off Dela- 
