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, Aequoreagroenlandica, southern form. . 1, Liriopescutigera; L, Laodicea 

 cruciata; m, Melice^t^ml campanula; p, Pliialidium languidum; s, Stauro- 

 phora mertensii. 



nistically, Aequorea groenlandica, was confined to the waters over the 

 inner 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- 



