First record of Calyptotheca alexandriensis (Cheilostomatida, Lanceoporidae) from Ras Juddi (Pasni) Makran coast, Northern Arabian Sea

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Abstract
The available information regarding bryozoans in coastal areas of Pakistan is limited. This research paper presents the first record of Calyptotheca alexandriensis from Ras Juddi (Pasni) along the Makran coast, and the second record globally of this species. This species was first reported in the Eastern Harbor of Alexandria, Egypt, as a distinctive deep orange erect foliaceous bryozoan and was observed abundantly on various hard substrates, such as rocks, ropes, metal pipes supporting marina piers, and ship hulls. The discovery adds a new record of the family, Lanceoporidae, and genus, Calyptotheca, to the bryozoan fauna of Pakistan, expanding its known distribution to the Northern Arabian Sea. The present specimens were collected during December 2021–October 2022 and subjected to detailed taxonomic analysis using light microscopy and scanning electron microscopy (SEM). This study contributes to the understanding of bryozoan biodiversity in the region and highlights the potential for further discoveries along the unexplored coastal areas of Pakistan.

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