Diastylis

Gerken, Sarah, 2015, New Zealand Diastylidae and Gynodiastylidae (Crustacea: Cumacea), Zootaxa 4031 (1), pp. 1-77 : 15

publication ID

https://doi.org/ 10.11646/zootaxa.4031.1.1

publication LSID

lsid:zoobank.org:pub:19E72EB1-B55C-40C0-AD11-23BA6E97D438

DOI

https://doi.org/10.5281/zenodo.6122499

persistent identifier

https://treatment.plazi.org/id/C70EEC59-6E2B-FFCC-FF24-1DE6FA357F69

treatment provided by

Plazi

scientific name

Diastylis
status

 

Key to the New Zealand species of Diastylis View in CoL

1. Carapace with few large spines anteriorly.................................................................. 2

- Carapace with small spines or none....................................................................... 3

2. Carapace with 4 large equal spines anteriorly; pereonite 5 and pleonite 1 with small or no ventral teeth D. homoacanthus View in CoL n. sp.

- Carapace with 2 large spines with smaller spines between anteriorly; pereonite 5 and pleonite 1 each with large ventral tooth......................................................................................... D. curtain View in CoL n. sp.

3. Carapace with multiple parallel ridges sweeping dorsally to anteroventrally........................... D. neozealanica View in CoL

- Carapace without such ridges............................................................................ 4

4. Carapace with many spines.............................................................................. 5

- Carapace entirely without spines......................................................................... 10

5. Carapace with small spines only on anterior half.................................................. D. dasys n. sp.

- Carapace with spines throughout......................................................................... 6

6. Spines organized in lines............................................................. D. spinacellulosus View in CoL n. sp.

- Spines scattered and unorganized......................................................................... 7

7. Telson less than 0.5 times length of uropod peduncles............................................... D. insularum View in CoL

- Telson more than 0.5 times length of uropod peduncles........................................................ 8

8. Antennule article 3 longer than article 2................................................. D. acanthoelachys View in CoL n. sp.

- Antennule article 3 shorter than article 2................................................................... 9

9. Anterior ventral margin of carapace strongly toothed; carapace, pereon and pleon with few setae..... D. adaioacanthus View in CoL n. sp.

- Anterior ventral margin with few weak teeth; carapace, pereon and pleon with many setae.................. D. acuminata View in CoL

10. Carapace smooth with few setae; telson with 10–11 pairs lateral setae................................ D. enodis View in CoL n. sp.

- Carapace rugose, with single partial lateral ridge; telson with 4–5 pairs lateral setae................... D. implanus View in CoL n. sp.

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Cumacea

Family

Diastylidae

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