Description and molecular phylogeny of Axinella nayaritensis n. sp. (Porifera: Axinellida) from East Pacific and remarks about the polyphyly of the genus Axinella Author Carballo, Jose Luis Author Bautista-Guerrero, Eric Author Cruz-Barraza, Jose Antonio text Zootaxa 2018 2018-09-17 4482 1 111 124 journal article 29431 10.11646/zootaxa.4482.1.4 34031c5e-d6b9-46c0-b2eb-1e4cd0edb935 1175-5326 1440488 2193C3BE-6D10-4DAE-9A06-85B875D28E6D Genus Axinella Schmidt, 1862 Synonymy: Axidragma Hallmann, 1917 , Axinella ( Homaxinella ) Topsent, 1916 , Axinella (Stylissa) Hallmann, 1914 , Axinosia Hallmann, 1914 , Chalinissa Lendenfeld, 1887 , Pseudaxinella Schmidt, 1875 , Querciclona de Laubenfels, 1936 , Teichaxinella de Laubenfels, 1936 , Tragosia Gray, 1867 . Type species: Axinella polypoides Schmidt, 1862 . Diagnosis: Ramose, bushy or lamellate habit. Surface generally smooth with choanosomal spicules projecting slightly; oscules, when visible, with stellate morphology (i.e., superficial canals leading to opening ‘imprinted’ in superficial skeleton); ectosome without specialized skeleton. Choanosomal skeleton differentiated in axial and extra-axial regions; axial skeleton compressed or vaguely reticulated; extra-axial skeleton plumose or plumoreticulate. Megascleres styles, or styles and oxeas, or oxeas; when both present, one type may be rare; modifications of megascleres common in several species. Microscleres, if present, microraphides and raphides, mostly in tightly packed trichodragmata ( Alvarez & Hooper 2002 ).