Sadayoshia

Macpherson, Enrique & Baba, Keiji, 2012, The squat lobsters of the genus Sadayoshia Baba, 1969 (Crustacea: Decapoda: Anomura: Munididae): new records including six new species from the Pacific Ocean, Zootaxa 3589, pp. 30-48 : 31

publication ID

https://doi.org/ 10.5281/zenodo.214643

publication LSID

lsid:zoobank.org:pub:9951C1E7-2958-48A5-9BE4-075973EAFD19

DOI

https://doi.org/10.5281/zenodo.6170161

persistent identifier

https://treatment.plazi.org/id/03ACBF18-FFDF-1B3F-FF31-FF7DFA42EE58

treatment provided by

Plazi

scientific name

Sadayoshia
status

 

Key to species of the genus Sadayoshia View in CoL

1. Abdominal somite 2 with spines on anterior ridge............................................................ 2

– Abdominal somite 2 unarmed............................................................................ 5

2. Abdominal somite 2 with 4 spines on anterior ridge........................................ S. balica (Boone, 1935) View in CoL

– Abdominal somite 2 with 2 spines on anterior ridge.......................................................... 3

3. Rostrum with dorsal longitudinal carina........................................................ S. moorei View in CoL n. sp.

– Rostrum without dorsal longitudinal carina, convex from side to side............................................. 4

4. Posterior branchial region with 10 or 11 transverse ridges (counting along lateral margin; exclusive of mid-transverse ridge directly behind cervical groove and posteriormost ridge anterior to posterior margin of carapace).......... S. aludra View in CoL n. sp.

– Posterior branchial region with 3 or 4 transverse ridges (counting along lateral margin; exclusive of mid-transverse ridge directly behind cervical groove and posteriormost ridge anterior to posterior margin of carapace)... S. acroporae Baba, 1972 View in CoL

5. Antennular article 1 with accesory spine on lateral margin, proximal to distolateral spine............................ 6

– Antennular article 1 with lateral margin unarmed............................................................. 9

6. One (rarely 2) spine mesial to anterolateral spine of carapace. Rostrum with dorsal longitudinal carina................................................................................................... S. edwardsii (Miers, 1884) View in CoL

– No spine mesial to anterolateral spine of carapace. Rostrum without dorsal longitudinal carina....................... 7

7. Postcervical spine absent............................................................... S. miyakei Baba, 1969 View in CoL

– Postcervical spine present............................................................................... 8

8. Flexor margin of Mxp 3 merus with 2 well-developed spines of subequal size, distally bearing small or obsolete spine. P2 merusmore than 3.5 times as long as broad.................................................... S. acamar View in CoL n. sp.

– Flexor margin of Mxp 3 merus usually with 3 well-developed spines. P2 merus less than 3.5 times as long as broad................................................................................. S. lipkei Macpherson & Baba, 2010 View in CoL

9. Sternite 3 more than 3 times as broad as long; sternite 4 about twice as broad as sternite 3. Abdominal somites 2–4 without transverse ridges other than anterior ridge................................................................ 10

– Sternite 3 at most twice as broad as long; sternite 4 about 3 times as broad as sternite 3. Abdominal somites 2–4 with 1–3 trans- verse ridges in addition to anterior ridge................................................................... 11

10. Anterior branchial spine absent. Rostral spine 2 times longer than wide (measured at sinus between rostral and anterior lateral spines).................................................................................. S. actaea View in CoL n. sp.

– Anterior branchial spine present. Rostral spine 3 times longer than wide (measured at sinus between rostral and anterior lateral spines).............................................................. S. latisternata Macpherson & Baba, 2010 View in CoL

11. Postcervical spine absent............................................................................... 12

– Postcervical spine present.............................................................................. 13

12. Rostral spine less than 2 times as long as wide (measured at sinus between rostral and anterior lateral spines). Mxp3 merus usu- ally with 2 flexor marginal spines.............................................................. S. adaro View in CoL n. sp.

– Rostral spine 2.5–3 times as long as wide (measured at sinus between rostral and anterior lateral spines). Mxp3 usually with 3 or 4 flexor marginal spines................................................. S. inermis Macpherson & Baba, 2010 View in CoL

13. Rostral spine more than 3.5 times as long as wide (measured at sinus between rostral and first lateral spine).................................................................................. S. tenuirostris Macpherson & Baba, 2010 View in CoL

– Rostral spine less than 2.5 times as long as wide (measured at sinus between rostral and first lateral spine).... S. savali View in CoL n. sp.

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Munididae

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