. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BIGELOW: COASTAL WATER EXPLORATION. 153 and off Chesapeake Bay (Stations 10387, 10389, 10390), Sagitta elegans corresponds with Calanvs finmarchiciis. Witli the advance of the season the relative importance of the two species of Sagitta was reversed, for in November S. serraiodentata was the predominant member of the pair at all stations west and south of Cape Cod, except close to the land near Marthas Vineyard (Station 1(M05), at the mouth of Delaware Bay (Station 10411), and off Chesapeake Bay (Station 10413, 10414)
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BIGELOW: COASTAL WATER EXPLORATION. 153 and off Chesapeake Bay (Stations 10387, 10389, 10390), Sagitta elegans corresponds with Calanvs finmarchiciis. Witli the advance of the season the relative importance of the two species of Sagitta was reversed, for in November S. serraiodentata was the predominant member of the pair at all stations west and south of Cape Cod, except close to the land near Marthas Vineyard (Station 1(M05), at the mouth of Delaware Bay (Station 10411), and off Chesapeake Bay (Station 10413, 10414), where the two species oc-. FiG. 50.— Occurrence of SagiKa elegans i%), S. serraiodentata (O) or both,( O). S. lyra (L). S. enflata (E). Eiikrohnia hamala (H), July-August, 1916. Also curred in roughly equal numbers.^ These records confirm our earlier experience that of these two Sagittae, which are so often companions in our waters, elegans is the more neritic, serratodentata the more oceanic. In its bathymetric range, Sagitta elegans agreed with Cedanus fin- marchicus, in as far as it usually is lacking in the surface hauls in sum- mer, even when plentiful in the deeper layers (so far detected on the 1 S. elegans detected at Stations 10405-10407,and 10409-10416. S. serratodentata detected at Stations 10405-10410, and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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