Draft:Acasta alba
Added information on the last three cirri and the penis.
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==Description== |
==Description== |
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Barnard said that the species was "almost exactly a combination of ''[[Acasta fenestrata|A. fenestrata]]'' and ''[[Acasta purpurata|A. purpurata]]'', approaching perhaps nearer to the latter." The shell is 4 mm long and white. The posterior ramus of the first [[cirrus (biology)|cirrus]] is double the length of the anterior ramus. The posterior ramus of the second cirrus is slightly longer than the anterior ramus, and the third cirrus has rami of about equal length.{{cite journal | vauthors=((Barnard, K. H.)) | journal=Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum | title=Contributions to the Crustacean Fauna of South Africa. 7. Cirripedia | volume=20 | pages=1--103 | publisher=South African Museum | date= 1924 | url=https://www.biodiversitylibrary.org/part/74667 | access-date=27 April 2026}} |
Barnard said that the species was "almost exactly a combination of ''[[Acasta fenestrata|A. fenestrata]]'' and ''[[Acasta purpurata|A. purpurata]]'', approaching perhaps nearer to the latter." The shell is 4 mm long and white. The posterior ramus of the first [[cirrus (biology)|cirrus]] is double the length of the anterior ramus. The posterior ramus of the second cirrus is slightly longer than the anterior ramus, and the third cirrus has rami of about equal length. The fourth cirrus has two recurved teeth on the second point of the peduncle. Of the 17 joints of the anterior ramus, joints one through seven has between two and three recurved teeth, and the eighth joint has one tooth. Every joint of the fifth and sixth cirri has three pairs of [[setae]] on its anterior margin. The penis is longer than the posterior cirri, has setea, and has small wrinkles.{{cite journal | vauthors=((Barnard, K. H.)) | journal=Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum | title=Contributions to the Crustacean Fauna of South Africa. 7. Cirripedia | volume=20 | pages=1--103 | publisher=South African Museum | date= 1924 | url=https://www.biodiversitylibrary.org/part/74667 | access-date=27 April 2026}} |
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==References== |
==References== |
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