Chthamalus nasus, Carriol, René-Pierre, 2008

Carriol, René-Pierre, 2008, New genus and new species of Cirripedia (Chthamalidae, Tetraclitidae, Archaeobalanidae and Balanidae) from the Middle Miocene of the faluns of Touraine (France), Zootaxa 1675, pp. 31-48 : 36

publication ID

https://doi.org/ 10.5281/zenodo.180298

DOI

https://doi.org/10.5281/zenodo.5677151

persistent identifier

https://treatment.plazi.org/id/062A6F1D-1B21-FF8C-E0EE-3399FD61DC1F

treatment provided by

Plazi

scientific name

Chthamalus nasus
status

sp. nov.

Chthamalus nasus sp. nov.

Fig. 2 View FIGURE 2. 1 – 8 (9a–10)

Diagnosis: Scutum much longer than broad, apex with a prominent blunt point, tergal margin sinuous.

Etymology: Morphological, alluding to the nose like apex of the scutum ( nasus = nose in Latin).

Occurrence: Ferrière-Larçon, Pauvrelay (Paulmy commune), Indre-et-Loire, France; faluns of Middle Miocene age.

Material: Holotype: MNHN A25744 left scutum. Paratype: MNHN A25745 View Materials right scutum.

Measurements: Holotype MNHN A25744: occludent margin 1.7 mm. Paratype MNHN A25745 View Materials : occludent margin 1.3 mm.

Description: Scutum triangular with basal margin nearly as long as tergal margin, apex with prominent blunt point; externally ornamented with fine growth ridges on lower part, corroded on upper part; articular ridge extending beyond tergal margin forming median prominence; articular furrow rather broad, not deep; pit for adductor muscle round, shallow; pit for depressor muscle lacking; internal surface with some blind tubes.

Affinities: The prominent, bluntly pointed apex of the scutum of C. nasus sp. nov. can be distinguished from all the others species of Chthamalus .

MNHN

Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Maxillopoda

Order

Sessilia

Family

Chthamalidae

Genus

Chthamalus

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