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HAMALPHEUS ACANTHOPS, NEW GENUS, NEW SPECIES, A STYGIOPHILIC ALPHEID SHRIMP FROM A SAMOAN LAVA TUBE

HAMALPHEUS ACANTHOPS, NEW GENUS, NEW SPECIES, A STYGIOPHILIC ALPHEID SHRIMP FROM A SAMOAN LAVA TUBE Alpheid shrimps are abundant in marine habitats, particularly in the tropics and on coral reefs. Few occur in brackish or fresh waters and their occurrence in troglobitic situations is particularly rare. Potamal- pheops stygicola (Hobbs, 1973) has been re- ported from a fresh-water cave in Mexico and two species of Metabetaeus, M. lohena Banner and Banner, 1960, and M. minutus (Whitelegge, 1897) occur in anchialine lava and coral pools (Holthuis, 1986). The pres- ent shrimp appears to be the first alpheid shrimp to be found in a marine lava tube. SYSTEMATIC ACCOUNT Hamalpheus, new genus Definition. -Body subcylindrical, feebly compressed, smooth, glabrous. Rostrum absent; carapace without supracorneal, su- praorbital, extracorneal, or infracorneal spines; sixth abdominal segment with pos- teroventral angle nonarticulate; pleura of first 4 abdominal segments rounded, fifth posteroventrally acute; telson without dor- sal spines, anal tubercles absent. Antennal peduncles robust; stylocerite well devel- oped; basicerite with large lateral tooth, scaphocerite normal; antennal flagellum ro- bust, semirigid proximally; eyes with cor- nea completely covered in dorsal view, stalk with stout, acute anterior tooth. Mouthparts normal; mandible with 2-jointed palp; mo- lar process well developed, incisor process dentate; third maxilliped with slender en- dopod, not suboperculate. First pereiopods http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Crustacean Biology Brill

HAMALPHEUS ACANTHOPS, NEW GENUS, NEW SPECIES, A STYGIOPHILIC ALPHEID SHRIMP FROM A SAMOAN LAVA TUBE

Bruce, A. J.; Iliffe, Thomas M.
Journal of Crustacean Biology , Volume 11 (4): 583 – Jan 1, 1991
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References (2)

Publisher
Brill
Copyright
Copyright 1991 by Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0278-0372
eISSN
1937-240X
DOI
10.1163/1937240X91X00446
Publisher site
See Article on Publisher Site

Abstract

Alpheid shrimps are abundant in marine habitats, particularly in the tropics and on coral reefs. Few occur in brackish or fresh waters and their occurrence in troglobitic situations is particularly rare. Potamal- pheops stygicola (Hobbs, 1973) has been re- ported from a fresh-water cave in Mexico and two species of Metabetaeus, M. lohena Banner and Banner, 1960, and M. minutus (Whitelegge, 1897) occur in anchialine lava and coral pools (Holthuis, 1986). The pres- ent shrimp appears to be the first alpheid shrimp to be found in a marine lava tube. SYSTEMATIC ACCOUNT Hamalpheus, new genus Definition. -Body subcylindrical, feebly compressed, smooth, glabrous. Rostrum absent; carapace without supracorneal, su- praorbital, extracorneal, or infracorneal spines; sixth abdominal segment with pos- teroventral angle nonarticulate; pleura of first 4 abdominal segments rounded, fifth posteroventrally acute; telson without dor- sal spines, anal tubercles absent. Antennal peduncles robust; stylocerite well devel- oped; basicerite with large lateral tooth, scaphocerite normal; antennal flagellum ro- bust, semirigid proximally; eyes with cor- nea completely covered in dorsal view, stalk with stout, acute anterior tooth. Mouthparts normal; mandible with 2-jointed palp; mo- lar process well developed, incisor process dentate; third maxilliped with slender en- dopod, not suboperculate. First pereiopods

Journal

Journal of Crustacean Biology – Brill

Published: Jan 1, 1991

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