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Diagnostic Description

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Length: 2.5-9.5 mm. Head with a small anteriorly pointing spine; pereonite 2 with antero-lateral anteriorly pointing projections; other body tuberculations minute or absent. Antenna 1 equals approximately ½ body length. Antenna 2 shorter than antenna 1 peduncle articles 1 an 2. Gnathopod 2 basis attached anteriorly on pereonite 2; propodus nearly rectangular; palm with proximal grasping spine, median poison spine separated from distal portion by a deep cleft; proximal margin finely denticulate, distal margin coarsely denticulate; palm and distal portion bear long hairs. Pereopods 3 and 4 small, with ring of setae at distal end of first segment. Pereopods 5 - 7 six-segmented; propodus with concave palmar surface, with proximal series of knobs bearing grasping spines. Female with small median knob on head; gnathopod 2 without cleft or large poison spine and with short hairs.

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Distribution

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California-Alaska (Pacific coast of North America). Probably endemic to the Pacific.

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General Description

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Caprellid, “Ghost” or “Skeleton” shrimps, so called for their skeletal appearance. Amphipod crustaceans, easily distinguished by the elongate stick-like body form and reduction of the abdominal appendages. Head is generally fused with pereonite 1. Pereopods on first 2 segments (pereonites) are most flexible and called gnathopods; gnathopods 2 being the largest, used in defense, feeding and substrate attachment. In many species pereopods 3 and 4 may also be reduced or absent. Gills on pereonites 3 + 4, rarely on pereonite 2. Pereopods 5 - 7 much smaller than 1 + 2, used for clinging to the substratum. In females, brood plates (öostegites) develop on pereonites 3 + 4. Much remains to be learnt about their biology, ecology and in many cases changing distributions.

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Habitat

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Open rocky shore on pilings of marine wharfs, on many substrates (algae, bryozoans, hydroids, eelgrass, compound ascidians, tentacles of sabellid worm), also deeper water

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Deutella californica ( Dutch; Flemish )

provided by wikipedia NL

Deutella californica is een vlokreeftensoort uit de familie van de Caprellidae.[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1890 door Mayer.

Bronnen, noten en/of referenties
  1. Lowry, J. (2012). Deutella californica Mayer, 1890. Geraadpleegd via: World Register of Marine Species op http://www.marinespecies.org/aphia.php?p=taxdetails&id=421580
Geplaatst op:
20-03-2013
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