Document of bibliographic reference 354644

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

About the mitromorphid species group Anarithma lachryma (Reeve, 1845) (Conoidea Mitromorpha) at reef levels of Balicasag Island (Central Philippines)

Abstract

Mitra lachryma (Reeve, 1845) (Conoidea Mitromorpha) is restored as type species of the genus Anarithma Iredale, 1916, and a series of eleven species ranging in Balicasag (Central Philippines) is proposed to belong to a restricted A. lachryma species group, composed of both planktotrophic and lecithotrophic species, all kind of intergrading situations being reported. Two new species are described in this species group, as A. bulbosa n. sp. and A. melvilli n. sp. The protoconch morphologies examined in the Anarithma complex are considered to reflect high plasticity and to support the hypothesis of a continuum in larval strategies, which contradicts binary taxonomies based on planktotrophic versus lecithotrophic protoconchs. The chromatic features of the teleoconch are considered to be more heritable and playing as better clue of the phyletic distances occurring in this group. Both competitors groups within the Anarithma complex and specific transitions to other mitromorphid genera are discussed.

Bibliographic citation

Boyer, F. (2022). About the mitromorphid species group Anarithma lachryma (Reeve, 1845) (Conoidea Mitromorpha) at reef levels of Balicasag Island (Central Philippines). Biodiversity Journal 13(1): 79-106. https://dx.doi.org/10.31396/biodiv.jour.2022.13.1.79.106

Topic

Marine

Is peer reviewed

true

Access rights

open access

Is accessible for free

true