Decapoda - Brachyura - Inachoididae - Pyromaia

Pyromaia acanthina Lemaitre, N. H. Campos & Bermúdez, 2001

World Distribution
Lemaitre et al. (2001) - Caribbean coast of Colombia, 196-321. Perhaps also Guadeloupe, 111-660 m.

Environnement : Marine - Substrat/Association : Hard bottom (rock and rubbles)

Vertical range : Deep (more than 100 m) - Min-Max observed: 111-660 m

Lesser Antilles data
Distribution (Lemaitre et al., 2001): WA. Caribbean coast of Colombia. 196-321 m, extended to ?116-660 m. ?Lesser Antilles, ICA (Guadeloupe, 111-660 m).
Pyromaia acanthina - Carmona-Suárez & Poupin, 2016: 366, Guadeloupe, Karubenthos 2012,1 female ov. 12.9 (without rostrum) x 8.8 mm, MNHN-IU-2013-5931 (lot JL173), st. GN04, 150 m [first recorded as Gen. sp.; somewhat intermediate between Pyromaia propinqua Chace, 1940 and P. acanthina Lemaitre, N. H. Campos & Bermúdez, 2001; male pleopod needed to be sure].
Pyromaia ?acanthina - Poupin & Corbari, 2016: in press, Guadeloupe (first record for Lesser Antilles?), Karubenthos II 2015, field det. J. Poupin, st. DW4511, 8 June 2015, 16°13.9'N, 61°51.5'W, 660-630 m, MNHN-IU-2013-18892 [Perhaps distinct]; st. DW4553, 15 June 2015, 16°20.82'N, 60°53.3'W, 162-111 m, MNHN-IU-2013-18915; st. DW4596, 22 June 2015, 15°56.55'N, 61°21.76'W, 164-185 m, MNHN-IU-2013-19031; st. DW4615, 25 June 2015, 16°23.16'N, 60°49.66'W, 270-226 m, MNHN-IU-2013-19073.
Comment: this preditermination is based on key and figures in Lemaitre et al. (2001). The specimens from Karubenthos are affiliated to P. acanthina because of long spines on gastric, cardiac, and intestinal areas of the carapace. There have also some ressemblances with P. tuberculata, a species from shallow waters in eastern Pacific, invasive in southwestern Atlantic. Specimen MNHN 18892 is much deeper than the others and perhaps of a distinct species.

Comment(s) on data
KARUBENTHOS 2012 - This specimen was recorded as Gen. sp. after Besse 2013 workshop. It was re-examined in MNHN, December 2015. It is somewhat intermediate between Pyromaia propinqua Chace, 1940 and P. acanthina Lemaitre, N. H. Campos & Bermúdez, 2001. The dorsal margin of the rostrum has few spines and the spines on lateral margin of carapace are reduced (as in P. propinqua) but median spines of carapace (meso and metagastric, cardiac and intestinal) are long and there are minute spines on the ambulatory legs (reduced on carpi), as in P. acanthina. Male first pleopod is very distinctive for these two Pyromaia species (cf. Lemaitre et al., 2001, figs 5a-c) but cannot be checked on female specimen examined. Pyromaia ?acanthina has been also tentatively recognized from photos during KARUBENTHOS 2015, between 111-660 m; these new specimens will probably help to confirm the present determination (Poupin & Corbari, in preparation)
KARUBENTHOS 2015 - First id as 'Podochela aff. curvirostris'. Genus Pyromaia is correct based on photos/figures in Lemaitre et al. (2001, J. Crust. Biol.) for Pyromaia propinqua and P. acanthina.

References : PDF list, 214 pp (1.4 Mo)

This species in Worms Database