Satsuma Adams 1868
Creators: name: Hwang, Chung-Chi
name: Wu, Shu-Ping
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Camaenidae
Satsuma

description: KEY TO THE DEXTRAL SPECIES OF SATSUMA ADAMS, 1868 IN TAIWAN
1 Shell high conic; shell height> shell width .................................................................................................. 2
— Shell depressed conic; shell height <shell width .......................................................................................... 3
2 Shell white or yellowish golden; with/without polymorphic bands ................................................................. ................................................................................................ S. albida species complex (see Wu et al. 2008)
— Shell brown; with a peripheral band ............................................................... S. sphaeroconus (Pfeiffer, 1866)
3 Shell colour yellow .................................................................................................... S. bacca (Pfeiffer, 1866)
— Shell colour light brown to dark brown ....................................................................................................... 4
4 Umbilicus totally covered by reflexed columellar lip .................................................................................... 5
Umbilicus partly open to completely open .................................................................................................. 6
5 Shell large-sized, shell width> 50 mm ................................................................... S. arisana (Kuroda, 1941)
Shell medium-sized, shell width <45 mm ................................................................... S. tani (Kuroda, 1941)
6 Shell width> 35 mm ................................................................................................................................... 7
Shell width <35 mm ................................................................................................................................. 10
7 Upper lip clearly sinuous; fold on basal lip present ............................................... S. bairdi (H. Adams, 1866)
Upper lip smoothly curved; fold on basal lip absent .................................................................................... 8
8 Spire lower; shell height/shell width <0.7 ............................................................ S. takahasii (Kuroda, 1941)
— Spire higher; shell height/shell width> 0.7 .................................................................................................. 9
9 Umbilicus completely open; penial caecum weak ........................ S. longkiauwensis Wu, Lin & Hwang, 2007
— Umbilicus partly open; penial caecum low conical .................................................................. S. nivnu n. sp.
10 Periphery angulate to carinate ................................................................................................................... 11
— Periphery round, at most roundly angulate ................................................................................................ 16
11 Umbilicus not covered by reflexed columellar lip ............................................. Satsuma mellea (Pfeiffer, 1866)
— Umbilicus partly covered by reflexed columellar lip ................................................................................... 12
12 Periphery sharply carinate; surface immediately below periphery concave; basal lip flat .................................. ............................................. Satsuma friesiana (Möllendorff, 1884) + syn. Coniglobus carinatus Chang, 1990
— Periphery bluntly carinate; surface immediately below periphery convex; basal lip smoothly curved .......... 13
13 Periphery angulate in front; whorls flat to weakly convex .......................................................................... 14
— Periphery round in front; whorls convex ................................................................................................... 15
14 Whorls flat; base convex; axial striae dense ........................................ S. succincta succincta (H. Adams, 1866)
— Whorls convex; base less convex; axial striae loose ............................................... S. paiwanis (Kuroda, 1941)
15 Spire higher; shell height/width ratio = 0.79; peristome very thick; whorls less convex ................................... ........................................................................................................... S. succincta rubrotincta (Kuroda, 1941)
— Spire lower; shell height/width ratio = 0.69; peristome not particularly thickened; whorls convex .................. ............................................................................................................ S. succincta amblytropis (Pilsbry, 1901)
16 Umbilicus close ................................................................................................ S. takkiriensis (Kuroda, 1941)
— Umbilicus partly covered ............................................................................................................................ 17
17 Basal lip curved ............................................................................................... S. litus (Chang & Tada, 2000)
— Basal lip flat ................................................................................................................................................ 18
18 Upper surface roughly and loosely ridged; outer lip sinuate ........................................................................ 19
— Upper surface finely and densely ridged; outer lip smoothly curved ............................................................ 20
19 Basal lip horizontal, straight; surface above periphery malleated ........................... S. nux (Möllendorff, 1888)
— Basal lip straightly downwrds; surface above periphery not malleated ................................ S. sunlinksea n. sp.
20 Spire high, shell height/shell width> 0.8 ................................................................................................... 21
— Spire low, shell height/shell width <0.75 ................................................................................................... 22
21 Upper lip smoothly curved; basal lip horizontal with a weak fold; penial pouch absent .................................. .............................................................................................................................. S. sericata (Kuroda, 1941)
— Upper lip sinuous; basal lip oblique without a fold; penial pouch present .......................... S. hsuehshan n. sp.
22 Tooth on basal lip apparent; flagellum hooked on tip, tapering ............................ S. chengi Wu & Tsai, 2015
— Tooth on basal lip inapparent; flagellum spirally tapering ........................................................................... 23
23 Distinguished by molecular characters only; shell larger; shell colour paler; penis shorter; distributed around Chipen, southeastern Taiwan .................................................................................... S. mii Wu & Wu, 2017
— Distinguished by molecular characters only; shell smaller; shell colour darker; penis longer; distributed around Antong, eastern Taiwan .................................................................................... S. paradoxa Wu & Tsai, 2016
description: Published as part of Hwang, Chung-Chi & Wu, Shu-Ping, 2024, Three new species of Satsuma Adams, 1868 (Gastropoda, Camaenidae) from Taiwan, pp. 61-76 in Zoosystema 46 (3) on pages 73-74, DOI: 10.5252/zoosystema2024v46a3, http://zenodo.org/record/10672362