. Decapod Crustacea of Bermuda. Their distribution, variations, and habits. Decapoda (Crustacea). 388 A. E. Yerrill—Decapod Crustacea of Bermuda. Of the lateral teeth, the first eight are subequal, all acute and curved forward; the third is a trifle wider; posterior lateral tooth not very large, about twice as long as the preceding, acute, curved a little forward. Merus of chelipeds with four strong anterior spines directed forward, and sometimes a small or subobsolete distal pos- terior one, which may be wholly lacking ; two carpal spines rather short. Manus with a strong dorsal carina, endin
. Decapod Crustacea of Bermuda. Their distribution, variations, and habits. Decapoda (Crustacea). 388 A. E. Yerrill—Decapod Crustacea of Bermuda. Of the lateral teeth, the first eight are subequal, all acute and curved forward; the third is a trifle wider; posterior lateral tooth not very large, about twice as long as the preceding, acute, curved a little forward. Merus of chelipeds with four strong anterior spines directed forward, and sometimes a small or subobsolete distal pos- terior one, which may be wholly lacking ; two carpal spines rather short. Manus with a strong dorsal carina, ending in a sharp diver- gent tooth at about the distal fourth. Merus of swimming feet broader distally, its posterior distal angle armed with a very small sharp spine and several more minute, acute Figure 33.—Aclietous Sniifhii: a, first ambulatorj' leg; b, swimming leg; d, denticulated angle of merus, enlarged. Phot. H. V. This form is very closely allied to A. spinitnamis, from which it is best distinguished by the less prominent front ; the smaller and nearh^ equalh^ prominent frontal teeth; the shorter and weaker pos- terior lateral spines ; and by the small or nearly obsolete posterior distal spine of the merus of the chelii)eds. The chelipeds are also longer. Some of our specimens (No. 4035) were catalogued as .4. spinitnanus by Prof. S. I. Smith, Avho depended on the figure of A. The type specimens, here described and figured, are from that lot. Measurements of Types and Cotypes. , —Carapace > Front Chelipeds brdth br'dth bet. height No. Sex rgth total — spines orbits length —spines Locality 4035a fig. * 26 42 36 r. 29 Off Hatteras 40356 $ 29 48 42 10 33 8 Off Hatteras 4049 2 26 44 37 11 1. 28 7 Ft. Macon The ratio of length to breadth, not including large lateral spines, is 1: to 1 Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloratio
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Keywords: ., bo, bookcentury1900, bookdecade1900, booksubjectdecapodacrustacea
