Scleroconcha

Chavtur, Vladimir G. & Keyser, Dietmar, 2016, Benthic myodocopid Ostracoda (Philomedidae) from the Southern Ocean, Zootaxa 4141 (1), pp. 1-70: 5

publication ID

http://doi.org/10.11646/zootaxa.4141.1.1

publication LSID

lsid:zoobank.org:pub:6033C3F3-85B8-4665-A7AF-7C0E4B230ABC

persistent identifier

http://treatment.plazi.org/id/18659911-FFB5-C934-FF08-B17CFA36F818

treatment provided by

Plazi

scientific name

Scleroconcha
status

 

Key to species of the genus Scleroconcha 

(only species south of 35°S included)

For adult females (also for male A-1 of S. frons; unknown for S. sculpta  )

1 Length of carapace shorter than 2.5 mm .................................................................... 2

- Length of carapace longer than 2.5 mm .................................................................... 4

2 Carapace with lateral ribs............................................................................... 3

- Carapace without lateral ribs....................................................................... S. wolffi 

3 Second endopodial joint of antenna short, 7th limb without peg on opposite comb............................... S. pix 

- Second endopodial joint of antenna long, 7th limb with peg on opposite comb................................ S. flexilis 

4 Rostrum on valves of carapace with ventral horn............................................................. 5

- Rostrum on valves of carapace without ventral horn.......................................................... 6

5 Terminal comb of 7th limb has 8 teeth with long marginal spines, caudal furca with 15+15 claws.................. S. solox 

- Terminal comb of 7th limb has 15–17 teeth with long marginal spines, caudal furca with 13+13 (14) claws........ S. arcuata 

6 Terminal comb of 7th limb has bare teeth or pegs, base of Bellonci organ segmented................................. 7

- Terminal comb of 7th limb has alate teeth with short spines, base of Bellonci organ unsegmented....................... 8

7 Medial eye with 3 tubercles............................................................ S. tuberculata  sp. nov.

- Medial eye bare.............................................................................. S. gallardoi 

8 Carapace elongated, with thin ribs................................................................ S. edentata 

- Carapace short, with thick ribs.................................................................. S. appelloefi