Patterns of Diversity of the Rissoidae (Mollusca: Gastropoda) in the Atlantic and the Mediterranean Region

Table 1

Number of Rissoid species, by genus in the Atlantic Ocean and in the Mediterranean Sea. ARC: Arctic; GRE: Greenland; ICE: Iceland; SCA: Scandinavia; BRI: British Isles; POR: Portugal; MED: Mediterranean Sea; LUS: Lusitanian seamounts; MET: Meteor seamounts; AZO: Azores; MAD: Madeira, Porto Santo and Desertas; SEL: Selvagens Islands; CAN: Canary Islands; CAP: Cape Verde; WAF: west-African coast; ANG: Angola; NSC: New Scotia biogeographic province; VIR: Virginian biogeographic province; CRL: Carolinian biogeographic province; TRO: Tropical biogeographic province (Caribbean); BRA: Brazil; STH: Santa Helena; TRS: Tristan da Cunha; SSA: southern South-America; ANT: Antarctic.

	ARC	GRE	ICE	SCA	BRI	POR	MED	LUS	MET	AZO	MAD	SEL	CAN	CAP	WAF	ANG	NSC	VIR	CRL	TRO	BRA	STH	TRS	SSA	ANT
Alvania	4	7	10	12	10	30	74	10	9	19	22	13	28	25	29	5	1	1	2	21	1			1
Amphirissoa									1	1										1
Benthonella			1	1	1	1	1	1	1	1	1		1				1	1	1	1
Benthonellania								1		1	2				3	1			4	5	2	1
Boreocingula	2	2	1	1	1
Botryphallus						1	1			1	1	1	1	1
Cingula	1			1	1	1				1	1									2		9
Crisilla				1	1	1	7	1		1	8	6	10	6	3	1
Folinia																				2
Frigidoalvania	3	2	1	1													3	2
Galeodinopsis														1	1	1
Gofasia						2		5	2		1	1	1
Lironoba																				1
Manzonia				1	1	2	1	6		1	7	7	10		2					1
Microstelma																				4		1
Obtusella			2	2	2	1	2			2	1		1	2	1	1
Onoba	3	5	9	3	2	3	7			1	2	1	5				4	2				2	6	22	7
Peringiella						1	2
Plagyostila						1	1							1	2
Pontiturboella							1
Porosalvania									8
Powellisetia																							1	3	1
Pseudosetia			1	2	1	3	2	1	1	1	1	1	2		1
Pusillina				2	2	7	11	1	2	1	3		5	1	2	1	1	1						1
Rissoa				3	4	12	26	1		2	7	5	15	1	2							2
Rissoina						1	3		1				1	2	1	1			4	18	2
Rudolphosetia						1	1				1	1	1
Schwartziella									1					26	1				4	9	2	5
Setia					1	6	18			5	3	1	6		1					1
Simulamerelina																			1	3
Stosicia																				2
Voorwindia							1
Zebina							1				2	1	2	1	1				2	6
Total of Rissoidae species	13	16	25	30	27	74	160	27	26	38	63	38	89	67	50	11	10	7	18	77	7	20	7	27	8