Sadayoshia
Creators: name: Macpherson, Enrique
name: Baba, Keiji
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Munididae
Sadayoshia

description: Key to species of the genus Sadayoshia
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)
– Abdominal somite 2 with 2 spines on anterior ridge.......................................................... 3
3. Rostrum with dorsal longitudinal carina........................................................ S. moorei 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 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
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)
– No spine mesial to anterolateral spine of carapace. Rostrum without dorsal longitudinal carina....................... 7
7. Postcervical spine absent............................................................... S. miyakei Baba, 1969
– 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 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
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 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
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 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
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
– Rostral spine less than 2.5 times as long as wide (measured at sinus between rostral and first lateral spine).... S. savali n. sp.
description: Published as part of 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, pp. 30-48 in Zootaxa 3589 on page 31, DOI: 10.5281/zenodo.214643