. Fig. 44. S. sargassi. Mastigopus 2 ? that the long diameter of the eyeball is markedly greater in S. pectinatus, whereas the eyestalk is distinctly shorter. (4) S. sargassi is somewhat larger at equivalent stages. The synonymy of this species seems to be rather obscure, and we have accepted Hansen's position. lUig's figures of the Mastigopus of S. henseni and S. ntidus are not sufficiently complete for certain identification, but it may be suggested that Figs. 84 and 104 are of S. pectinatus and Fig. 103 of S. sargassi.
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