Genus Echinolaophonte Nicholls, 1941

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• Echinolaophonte Nicholls, A.G. 1941. A revision of the families Diosaccidae Sars, 1906 and Laophontidae T. Scott, 1905 (Copepoda, Harpacticoida). Records of the South Australian Museum (Adelaide) 7(1): 65-110 [Date published 27 Oct 1941] [95].

  Type species:

   Laophonte horrida Norman, 1876 by original designation.

Distribution

States

Western Australia

IBRA and IMCRA regions

IMCRA

Southwest Shelf Transition (30)

Diagnosis

Laophonte having a single large recurved spur dorsally on the posterior margin of the head segment and paired spines dorsolaterally on each of the following body segments except the last one or two. Rostrum large and expanded. A1 6-segmented, with 4 segments in the basal portion with is composed of 3 long segments and a short fourth one bearing an aesthetasc; terminal portion with end segment longer than penultimate one. P1 coxa and basis long and slender. P1 exopod 2-segmented; 2 segments may be partially fused; exopod very slender and not exceeding half the length of the P1 endopod-1.

Setal formulae for P2-P4

Endopod Exopod
P2 0.120 0.1.12[2-3]
P3 0.220 0.1.223
P4 0.120 0.1.22[2-3]

P5 baseoendopod narrow, endopodal lobe with 4 or 5 setae, exopod elongate and with 3 setae.

Remarks.- The above setal formula and type of P5 are not found in any other species of Laophonte. These features, together with the modification of the body and rostrum prompted Nicholls (1941) to errect the new genus Echinolaophonte.

ID Keys

to the species of the world, see Nicholls (1941).

Diagnosis References

Nicholls, A.G. 1941. A revision of the families Diosaccidae Sars, 1906 and Laophontidae T. Scott, 1905 (Copepoda, Harpacticoida). Records of the South Australian Museum (Adelaide) 7(1): 65-110 [Date published 27 Oct 1941] [95]

History of changes