Collettea

Drumm, David T. & Bird, Graham J., 2016, New deep-sea Paratanaoidea (Crustacea: Peracarida: Tanaidacea) from the northeastern Gulf of Mexico, Zootaxa 4154 (4), pp. 389-414 : 397-398

publication ID

https://doi.org/ 10.11646/zootaxa.4154.4.2

publication LSID

lsid:zoobank.org:pub:B4B00DC6-D87E-480E-9A81-58294174F164

DOI

https://doi.org/10.5281/zenodo.5673119

persistent identifier

https://treatment.plazi.org/id/262C87F2-FFE8-FFA5-FF75-4C84F58BC10E

treatment provided by

Plazi

scientific name

Collettea
status

 

Key to species of the genus Collettea View in CoL

(modified after Larsen 2000, Błażewicz-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 View in CoL

- 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 View in CoL n. sp.

4. Antenna article-4 without fusion line. Maxilliped endite with two pairs of setae............................. C. alicjae View in CoL

- Antenna article-4 with distal fusion line. Maxilliped endite lacking setae............................. C. cylindratoides View in CoL

5. Cheliped fixed finger with one ventral seta.................................................................6

- Cheliped fixed finger with two ventral setae...............................................................13

6. Uropod endopod one-articled................................................................ C. longipleona View in CoL

- 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 View in CoL

- Cephalothorax lacking fine setules on mid-lateral margins. Antenna article-4 without fusion line....................... 9

9. Pleotelson shorter than pleonites 3–5........................................................... C. prominentia View in CoL

- Pleotelson longer than pleonites 3–5................................................................ C. subtilis View in CoL

10. Antenna article-4 with fusion line............................................................... C. longipedia View in CoL

- Antenna article-4 without fusion line..................................................................... 11

11. Maxillipedal endite with pair of setae.............................................................. C. lilliputa View in CoL

- Maxillipedal endite without setae........................................................................12

12. Pereonites 4 and 5 longer than wide............................................................ C. longisetosa View in CoL

- Pereonites 4 and 5 wider than long................................................................ C. minima View in CoL

13. Pleon shorter than last three pereonites............................................................ C. humbolti View in CoL

- Pleon longer than last three pereonites.................................................................... 14

14. Uropod endopod one-articled.................................................................. .. C. pegmata View in CoL

- Uropod endopod two-articled...........................................................................15

15. Pleotelson as long as pleonites combined length................................................. C. rotundicauda View in CoL

- 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 View in CoL

- Antenna article-4 without fusion line............................................................ .. C. elongata View in CoL

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 View in CoL

- 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 View in CoL

- 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 View in CoL

- Antennule article-1 shorter than last three segments combined........................................ C. antarctica View in CoL

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF