Collettea

• Main Authors: Drumm, David T., Bird, Graham J.
• Format: Text
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Tanaidacea; Colletteidae; Collettea; Antarctic; The Antarctic; Pacific; Seta; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5281/zenodo.5673118; https://zenodo.org/record/5673118

Key to species of the genus Collettea (modified after Larsen 2000, B&lstrok;a&zdot;ewicz-Paszkowycz & Larsen 2005, and Wi et al ., 2015). 1. Pereonites 1–3 subequal in length or only slightly increasing in length posteriorly................................... 2 - Pereonites 2 and 3 (or pereonite 3 only) distinctly longer than pereonite 1......................................... 5 2. Cheliped fixed finger with one ventral seta................................................................. 3 - Cheliped fixed finger with two ventral setae................................................................4 3. Pleotelson longer than three pleonites combined. Antenna article-4 with fusion line. Maxilliped endite lacking setae. Cheliped fixed finger cutting edge denticulate along entire margin................................................ C. wilsoni - Pleotelson as long as or longer than four pleonites combined. Antenna article-4 without fusion line. Maxilliped endite with two pairs of setae. Cheliped fixed finger cutting edge denticulate distally................................ C. bamberi n. sp . 4. Antenna article-4 without fusion line. Maxilliped endite with two pairs of setae............................. C. alicjae - Antenna article-4 with distal fusion line. Maxilliped endite lacking setae............................. C. cylindratoides 5. Cheliped fixed finger with one ventral seta.................................................................6 - Cheliped fixed finger with two ventral setae...............................................................13 6. Uropod endopod one-articled................................................................ C. longipleona - Uropod endopod two-articled............................................................................ 7 7. Uropods short (<0.3 times length of pleotelson).............................................................. 8 - Uropods long (> 0.3 times length of pleotelson)............................................................. 10 8. Cephalothorax bearing fine setules on mid-lateral margins. Antenna article-4 with fusion line................... C. eminula - Cephalothorax lacking fine setules on mid-lateral margins. Antenna article-4 without fusion line....................... 9 9. Pleotelson shorter than pleonites 3–5........................................................... C. prominentia - Pleotelson longer than pleonites 3–5................................................................ C. subtilis 10. Antenna article-4 with fusion line............................................................... C. longipedia - Antenna article-4 without fusion line..................................................................... 11 11. Maxillipedal endite with pair of setae.............................................................. C. lilliputa - Maxillipedal endite without setae........................................................................12 12. Pereonites 4 and 5 longer than wide............................................................ C. longisetosa - Pereonites 4 and 5 wider than long................................................................ C. minima 13. Pleon shorter than last three pereonites............................................................ C. humbolti - Pleon longer than last three pereonites.................................................................... 14 14. Uropod endopod one-articled.................................................................... C. pegmata - Uropod endopod two-articled...........................................................................15 15. Pleotelson as long as pleonites combined length................................................. C. rotundicauda - Pleotelson shorter or longer than pleonites combined length...................................................16 16. Uropods long (> 0.3 times length of pleotelson).............................................................17 - Uropods short (<0.3 times length of pleotelson)........................................................... 18 17. Antenna article-4 with fusion line............................................................. C. vermiformis - Antenna article-4 without fusion line.............................................................. C. elongata 18. Antenna article-4 with fusion line........................................................................ 19 - Antenna article-4 without fusion line..................................................................... 20 19. Pleotelson longer than combined length of all five pleonites......................................... C. larviformis - Pleotelson shorter than combined length of all five pleonites......................................... C. cylindrata 20. Pereonites 4 and 5 longer than wide......................................................................21 - Pereonites 4 and 5 wider than long.......................................................................22 21. Cephalothorax bearing fine setules on mid-lateral margins. Pereon as long as pleon........................... C. aspera - Cephalothorax lacking fine setules on mid-lateral margins. Pereon longer than pleon........... C. sp. A sensu Larsen, 2005 22. Antennule article-1 longer than last three segments combined........................................... C. arnaudi - Antennule article-1 shorter than last three segments combined........................................ C. antarctica : Published as part of Drumm, David T. & Bird, Graham J., 2016, New deep-sea Paratanaoidea (Crustacea: Peracarida: Tanaidacea) from the northeastern Gulf of Mexico, pp. 389-414 in Zootaxa 4154 (4) on pages 397-398, DOI: 10.11646/zootaxa.4154.4.2, http://zenodo.org/record/260424 : {"references": ["Larsen, K. (2000) Revision of the genus Collettea (Crustacea: Tanaidacea). Invertebrate Taxonomy, 14, 681 - 693. http: // dx. doi. org / 10.1071 / IT 98015", "Blazewicz-Paszkowycz, M. & Larsen, K. (2005) New species of the genus Collettea Lang, 1973 (Peracarida: Tanaidacea, Colletteidae) from the Antarctic. Zootaxa, 1085, 1 - 19.", "Wi, J. H., Suh, H. L. & Kim, D. (2015) Three new species of the deep-sea genus Collettea Lang, 1973 (Tanaidacea; Colletteidae) in the eastern Central Pacific. Journal of Crustacean Biology, 35 (5), 714 - 727. http: // dx. doi. org / 10.1163 / 1937240 X- 00002368"]}