. Decapod crustaceans of the northwest coast of North America ... Crustacea -- North America. DECAPODS 149 Family AXIID^, Genus Axius Leach. AXIUS SPINULICAUDA Rathbun. Axius spinulicarida Rathbun, Proc. U. S. Nat. Mus., xxiv, 886, 1902. Carapace (rostrum included) measured in the middle line, as long as the first 5 abdominal somites, cervical groove deep, branchial groove indistinct. Gastric region traversed by 5 carinas, all of which fade out before reaching the cervical groove; the median extends along the basal third of the rostrum and is armed with 4 spines just behind the line of. Fig. 9
. Decapod crustaceans of the northwest coast of North America ... Crustacea -- North America. DECAPODS 149 Family AXIID^, Genus Axius Leach. AXIUS SPINULICAUDA Rathbun. Axius spinulicarida Rathbun, Proc. U. S. Nat. Mus., xxiv, 886, 1902. Carapace (rostrum included) measured in the middle line, as long as the first 5 abdominal somites, cervical groove deep, branchial groove indistinct. Gastric region traversed by 5 carinas, all of which fade out before reaching the cervical groove; the median extends along the basal third of the rostrum and is armed with 4 spines just behind the line of. Fig. 90. Axius sJ>inuUcauda. 5 (Xz)- Station 3172. a. Carapace and antennae, b. Swimming-fan. the orbits; the posterior of these spines is broken off in the unique type; the outer carinse are a continuation of the side margins of the rostrum; they, as well as the shorter intermediate carinse, are unarmed. The sur- face is covered with rather distant scabrous granules. In front of the narrow median posterior lobe, the surface is compressed or pinched to form a short smooth ridge. The rostrum reaches the middle of the second joint of the antennular peduncle, is slightly deflexed, longitudinally channeled, sharp-pointed, armed with 5 spines on one side and 6 on the other. Eyes black, of the same diameter as the stalk, not reaching the middle of the basal antennular segment. The basal expansion of this segment has convex side margins, an antero-external spine, and reaches just beyond the middle of the segment; the second segment is a httle longer than the third, and the two together are shorter than the first. The entire pe-. 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 Rathbun, Mary Jane, 1860-1943. New York
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyork, bookyear19
