Processidae

Almeida, Alexandre Oliveira & Bezerra, Luis Ernesto Arruda, 2011, Nikoides schmitti Manning & Chace, 1971 (Caridea: Processidae) in the South Atlantic Ocean, with an updated list and key for processid shrimps of Brazil, Zootaxa 2864, pp. 34-42: 39-40

publication ID

http://doi.org/ 10.5281/zenodo.277417

persistent identifier

http://treatment.plazi.org/id/03CAD129-FFAB-FFD7-5596-11468EDBFE3D

treatment provided by

Plazi

scientific name

Processidae
status

 

Key for the identification of Processidae   from Brazilian waters

(modified from Manning & Chace 1971 and Noël 1986):

1. P 1 both chelate and lacking exopods; P 2 symmetrical...................................... Ambidexter symmetricus  

1 ’. Only one (usually the right) of P 1 chelate, the other P 1 ending in a simple dactylus................................. 2

2. P 1 with exopods......................................................................... Nikoides schmitti  

2 ’. P 1 without exopods.................................................................................... 3

3. Pleura of fifth abdominal segment with posterolateral tooth...................................... Processa fimbriata  

3 ’. Pleura of fifth abdominal segment rounded or angled posterolaterally, lacking distinct posterolateral tooth............... 4

4. Antennal spine absent.................................................................................. 5

4 ’. Antennal spine present................................................................................. 6

5. P 2 asymmetrical; rostrum not markedly deflexed anteriorly; right P 2 with 10–15 meral and 19–29 carpal articles, left P 2 with 3–4 meral and 13–15 carpal articles...................................................... Processa bermudensis  

5 ’. P 2 symmetrical; rostrum deflexed anteriorly; right P 2 with 5 meral and 10–14 carpal articles.............. Processa vicina  

6. P 2 symmetrical......................................................................... Processa hemphilli  

6 ’. P 2 asymmetrical...................................................................................... 6

7. Lobe on sixth abdominal segment above articulation of uropod produced into posterior spine........... Processa profunda  

7 ’. Lobe on sixth abdominal segment above articulation of uropod unarmed.......................................... 8

8. Stylocerite truncated obliquely, without a developed tooth or a well-defined outer anterior angle; basicerite unarmed........................................................................................... Processa brasiliensis  

8 ’. Stylocerite truncated transversely, angled, or with a more or less developed outer anterior tooth; basicerite armed with a lateral spine................................................................................. Processa guyanae