Cryptohaustorius, Hancock & Ogawa & Light & Wicksten, 2022

Hancock, Zachary B., Ogawa, Hiroshi, Light, Jessica E. & Wicksten, Mary K., 2022, Origin and evolution of the Haustoriidae (Amphipoda): a eulogy for the Haustoriidira, Zoological Journal of the Linnean Society 194 (4), pp. 1252-1267 : 1264

GENUS CRYPTOHAUSTORIUS GEN. NOV.

Zoobank registration: urn:lsid:zoobank.org:act:34DE5F4A-3CA2-4F80-AFFE-5287A77AE1D1 .

Type species: Cryptohaustorius triarticulatus ( Robertson & Shelton, 1980) , comb. nov.

Diagnosis: Small haustoriids (2–5 mm). Maxilla 2 outer lobe broadly expanded, roughly twice size of inner lobe. Pleon continuous with urosome; epimeron 3 smooth, ventrally curved (without hook). Telson cleft to base, strongly spinated. Etymology: From Greek κρύΠτω, hidden or concealed, and Latin haustorius the type genus of the family, from Latin haustor, ‘something that draws in’. The gender is masculine. Known species: Cryptohaustorius triarticulatus (undescribed species complex; Hancock et al., 2019). Range: Restricted to the Gulf of Mexico. Most numerous in brackish bays, sometimes subtidally on open coasts. Additional taxonomic issues may exist. For example, we found that the genus Protohaustorius appears to be polyphyletic, with Pr. deichmanne Bousfield, 1965 grouping within the Parahaustorius clade. However, without additional members of the genus and with low confidence of the phylogenetic position of Pr. bousfieldi Robertson & Shelton, 1978 , we suggest that additional data is needed before taxonomic reorganization is warranted.