Collettea

Larsen, Kim, 2011, Tanaidaceans (Crustacea) from the Central Pacific Manganese Nodule Province. I. The genera Collettea, Robustochelia and Tumidochelia, ZooKeys 87, pp. 19-41 : 25-26

Collettea sp. Fig. 4

Material examined.

Manca II SUB-CStation SUB-C # 1, 05/06-2004, 14°01.7913'N, 130°08.1755'W, depth 4987 m.

Description.

Manca II

Body (Fig. 3A) length 1.9 mm. Ten times as long as broad. Cephalothorax shorter than combined length of pereonite 1 and 2.

Pereon. Pereonites 1, 5, and 6 wider than long. Pereonite 2-4 longer than wide.

Pleon relatively short, about half as long as rest of body. All pleonites subequal but progressively deeper towards pleotelson.

Pleotelson longer than combined length of three pleonites, deeper than pleonites.

Pereopod 4 (Fig. 3B) dactylus with clear ventral spine at unguis insertion.

Remarks.

As this species was only recorded from one specimen of stage manca II it is not justifiable to erect a new species. The short uropods indicate however that it is not conspecific with Collettea longisetosa . This manca could be conspecific with Collettea sp. ( Larsen 2000) which was collected in the same ocean basin (09°37.41'N, 151°45.00'W), however, since that species was not dissected, no further comparisons can be made. Several other species of Collettea share the ventral dactylus spine on pereopods 4-6 ( Collettea alicjae Błażewicz-Paszkowycz & Larsen, 2005; Collettea humbolti Larsen, 2000; Collettea longipleona Błażewicz-Paszkowycz & Larsen 2005) and the species recorded here and thus this character is not good for species identification.