. Alaska ... Natural history; Scientific expeditions. 78 RATHBUN On the few specimens examined the superior teeth are 4; the inferior vary from 4 to 8. Stimpson says that the thick flagellum of the antennulae extends to the end of the rostrum; this is probably true of the S . All the specimens in hand are females, in which the flagellum extends only about two thirds the length of the rostrum. Z?/;//^;/^/^;/J.—Approximate length of $ with eggs mm., length of carapace and rostrum 18 mm., of rostrum mm. SPIRONTOCARIS FLEXA Rathbun. Spirontocaris camtschatica Rathbun, The Fur Seals and F
. Alaska ... Natural history; Scientific expeditions. 78 RATHBUN On the few specimens examined the superior teeth are 4; the inferior vary from 4 to 8. Stimpson says that the thick flagellum of the antennulae extends to the end of the rostrum; this is probably true of the S . All the specimens in hand are females, in which the flagellum extends only about two thirds the length of the rostrum. Z?/;//^;/^/^;/J.—Approximate length of $ with eggs mm., length of carapace and rostrum 18 mm., of rostrum mm. SPIRONTOCARIS FLEXA Rathbun. Spirontocaris camtschatica Rathbun, The Fur Seals and Fur-Seal Islands of the North Pacific Ocean, Pt. ill, 557, 1899. Not S. camtschatica (Stimpson). spirontocaris/lexa Rathbun, Proc. U. S. Nat. Mus,, xxiv, 896, 1902. Female.—Slender. Carapace crested on its anterior third; rostrum longer than the carapace, armed with 4 or 5 teeth above, including i or 2 on the carapace; anterior tooth near middle of rostrum; anterior half of rostrum not limbed above. Rostrum very slender, nearly horizontal, a. Fig. 32. Spirontocaris flexa. $. Station 2850. a. Side of carapace and abdo- men (X 2)- b. Dorsal view of anterior portion (X 3)- little arched above the eye; lower limb narrow and armed with from 5 to 8 spines; tip reaching nearly to or a little beyond the end of the antennal scale. An antennal and a pterygostomian spine, the latter well developed. Antennular peduncle reaching one third the length of the antennal scale; basal spine to a little beyond first segment; thickened portion of outer flagellum reaching to about distal third of antennal scale; inner flagellum to end of scale. Spine of antennal scale not nearly as advanced as the membranous portion. Peduncle of antenna advanced as far as the second antennular segment; flagellum nearly as long as 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 no
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