. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. LOOMIS: PUERTO RICAN AND DOMINICAN MILLIPEDS 59 Last segment quite long, the slightly deflexed apex rather suddenly constricted. Gonopods as shown in figure 21. Craterodesmus genus nov. Diagnosis. This is an unusually stout-bodied genus with no close relatives known in the West Indian fauna. The swollen preanal scale probably is a generic character and of diagnostic value but most im- portant are the gonopods which are notably different from other recog- nized genera. Description. Size large, body stout and convex, mu
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. LOOMIS: PUERTO RICAN AND DOMINICAN MILLIPEDS 59 Last segment quite long, the slightly deflexed apex rather suddenly constricted. Gonopods as shown in figure 21. Craterodesmus genus nov. Diagnosis. This is an unusually stout-bodied genus with no close relatives known in the West Indian fauna. The swollen preanal scale probably is a generic character and of diagnostic value but most im- portant are the gonopods which are notably different from other recog- nized genera. Description. Size large, body stout and convex, much like Fontaria but the lateral keels are narrower and on all but the most anterior and posterior segments are well separated from each other; surface shining,. Fig. 22. Craterodesmus ovatus. Gonopods. almost smooth except for a few fine wrinkles and two transverse rows of what appear to be folicles on the keels and adjacent dorsum; poriferous metazonites almost colorless, the non-poriferous metazonites mostly dark brown with lighter margins. Head with a strongly impressed furrow across the vertex and a pair of erect setae on each side opposite its middle; surface in front of the antennae sparsely hispid; antennae slender and moderately long, joint 2 longest, the next four joints of subequal length; joint 6 slightly broader distally than the other 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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