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“Pentacheles Suhmi, n. sp.
Carapace with lateral margins subparallel; anterior division armed with five strong teeth, median with two, and posterior with eight or nine strong teeth that are continuous to the posterior margin; frontal margin having a single sharp tooth on the inner side of the orbital angle, and two central rostral teeth, posterior to which are two single and two double teeth on the central dorsal ridge of the anterior portion of the carapace ; two teeth closely set are situated on the anterior and posterior extremities of the central ridge. The pleon is carinated, each somite being formed into two unequal teeth, the anterior being the longer and most anteriorly projecting.
Taken in lat. 47° 48' S long. 74° 48' W on the west coast of Patagonia, 120 fathoms, in mud.”