1 / 5

Detailed Description of Alona rectangula: Morphology and Characteristics

Alona rectangula, a member of the Chydoridae family, is a common cladoceran found in pelagic plankton. This species is recognized by its various valve morphologies, which may appear striated, reticulated, or smooth. Notably, its postabdomen is short, slightly expanding towards the apex, featuring 8-9 marginal denticles or setae. Marginal fasicles with small spines line the postabdomen, extending beyond its edge, while the antennule does not surpass the rostrum. Morphological details are illustrated through various plates depicting lateral views, rostrum, postabdomen, and valve structure.

yvonne
Télécharger la présentation

Detailed Description of Alona rectangula: Morphology and Characteristics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Class: Crustacea Order: Phyllopoda Suborder: Cladocera Family: Chydoridae Alona rectangula Sars Description: Plate 022a. Lateral view of Alona rectangula, with postabdomen extended. Plate 022b. Rostrum and antennule of Alona rectangula. Plate 022c. Postabdomen of Alona rectangula, marginal fasicles extend beyond its margin. Plate 022d. Valve of carapace of Alona rectangula showing striation and ventral spines A common species, Alona rectangula is a component of the pelagic plankton, but usually not in great numbers. Its valves may be striated, reticulated, or smooth. The postabdomen short, slightly enlarged toward apex, angle rounded, with 8-9 marginal denticles or setae. Fasicles (an inner margin of small spines) line the postabdomen, the distal of these extend beyond the margin of the abdomen. The antennule does not extend beyond the rostrum. .

  2. Plate 022a. Lateral view of Alona rectangula, with postabdomen extended.

  3. Plate 022b. Rostrum and antennule of Alona rectangula.

  4. fasicles denticles Plate 022c. Postabdomen of Alona rectangula, marginal denticles and fasicles (an identifiable character) extend beyond its margin.

  5. Plate 022d. Valve of carapace of Alona rectangula showing striation and ventral spines.

More Related