Periclimenes yucatanicus (Ives, 1891)

Poupin, Joseph, 2024, A documented checklist of the Crustacea (Stomatopoda, Decapoda) of the southern Guianas (Guyana, Suriname, French Guiana, Brazil Amapá), European Journal of Taxonomy 954 (1), pp. 1-197 : 53

Periclimenes yucatanicus (Ives, 1891)

Periclimenes yucatanicus – MNHN DECAPODA GUYANE 2014, French Guiana [stn CP4381, 114– 118 m, MNHN-IU-2013-2617, http://coldb.mnhn.fr/catalognumber/mnhn/iu/2013-2617; id. not indicated, photo available].

Distribution/Habitat

WA; marine (associated with anemones); 3– 24 m.

Remark

This record is doubtful and is perhaps Ancylomenes pedersoni , instead. The identifier of the single specimen in the MNHN collection is unknown. The photograph available is overall similar to that presented for specimens of the same campaign attributed to Ancylomenes pedersoni . Chace (1958: 128) indicates that the two species are closely related. Among the characters that he uses to separate them, the number of dorsal teeth on the rostrum is 5–6 in A. pedersoni and 7–9 in P. yucatanicus . There are 5–6 teeth visible on the MNHN photo, indicating A. pedersoni rather than P. yucatanicus . A careful revision of all MNHN specimens ( A. pedersoni and P. yucatanicus ) is necessary to conclude on this matter. If P. yucatanicus is confirmed, this represent a geographic extension to the South, from Venezuela to French Guiana, and a new depth record, from 24 m to 114– 118 m.