This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.
|Streptochilus cetacensis Smart and Thomas (2007)|
= Streptochilus cetacense
|Streptochilus dubeyi Petters 1983|
|Streptochilus globiger subsp. infirmirugosus Fordham 1986|
|Streptochilus inglei Miranda-Martínez et al. 2017|
= Streptochilus inglei
|Streptochilus latum Brönnimann & Resig 1971|
= Streptochilus latum
|Streptochilus macdougallae Miranda-Martínez and Carreño 2017, in Miranda-Martínez et al. 2017|
= Streptochilus macdougallae
|Streptochilus mascarenensis Smart and Thomas (2007)|
= Streptochilus mascarenense
|Streptochilus pristinum Brönnimann & Resig 1971|
= Streptochilus pristinum
|Streptochilus rockallkiddensis Smart and Thomas (2007)|
= Streptochilus rockallkiddense
|Streptochilus subglobigerum Resig 1989|
= Streptochilus subglobigerum
|Streptochilus tasmanensis Smart & Thomas 2018|
= Streptochilus tasmanense
|Stretptochilus tokelauae subsp. flexiserialis Fordham 1986|
Current identification/main database link: Streptochilus Bronnimann and Resig, 1971
Test biserial, sometimes twisted; wall calcareous per- forate; aperture a high arch, eccentric in position, extending from the base of the last chamber onto the apertural face. On the outside margin, a collar borders the aperture. Near the base of the inside margin, the collar and apertural edge are turned inward, producing a plate-like connection with the proximal margin of the collar of the previous aperture. The length of the test varies between 75 and 300 microns.
Etymology: from streptos, Gr., twisted, + cheilos, Gr., lip, denoting the change to an inward directed lip.
Extra details from original publication
Remarks: This genus probably evolved from Chiloguembelina, which it resembles, through infolding of the inner margin of the aperture. In view of its apparent close affinity to Chiloguembelina, the rather simple modification of the interior does not seem to warrant exclusion of this genus from classification within the Heterohelicidae. No tooth plates, such as characterize the Bolivinitidae, occur in members of this genus, and no stage of development other than biserial was observed in any specimens assigned to this taxon.
Geologic range: Lower Miocene-Recent.
Streptochilus compiled by the pforams@mikrotax project team viewed: 13-6-2021
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