. Alaska. Natural history -- Alaska; Scientific expeditions; Alaska. 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 3 . AH the specimens in hand are females, in which the flagellum extends only about two thirds the length of the rostrum. Z>imefisions.— length of $ with eggs mm., length of carapace and rostrum 18 mm., of rostrum mm. SPIRONTOCARIS FLEXA Rathbun. Spirontocaris catntschatica Rathbun, The
. Alaska. Natural history -- Alaska; Scientific expeditions; Alaska. 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 3 . AH the specimens in hand are females, in which the flagellum extends only about two thirds the length of the rostrum. Z>imefisions.— length of $ with eggs mm., length of carapace and rostrum 18 mm., of rostrum mm. SPIRONTOCARIS FLEXA Rathbun. Spirontocaris catntschatica Rathbun, The Fur Seals and Fur-Seal Islands of the North Pacific Ocean, Pt. Ill, 557, 1899. Not S. camtschatica (Stimpson). SpirontocarisJlexa 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 Jiexa. $. 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 il
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