Calcinus latens ( Randall, 1840 )

Ririhena, Dharma Arif Nugroho Dwi Listyo Rahayu Rianta Pratiwi Rena Tri Hernawati Ujang Nurhaman John Etry, 2024, Hermit crabs (Decapoda: Anomura: Coenobitidae, Calcinidae, Diogenidae, Paguridae) from Halmahera Island, North Maluku, Indonesia, Nauplius (e 20240507) 32, pp. 1-24 : 8

Calcinus latens ( Randall, 1840)

( Fig. 4E )

Habitat. Intertidal, on seagrass bed, dead coral, and sandy mud substrates.

Distribution. Wide distribution in the Indo-Pacific.

Indonesia: Sulawesi, Maluku and Lombok .

Remarks. This is a very common species of the intertidal, often found aggregated under large boulders during low tide. Calcinus latens is easily recognized in life by the bluish-green color of the shield and chelipeds, the ambulatory legs dactylus with dark brown or purple stripes proximally, the propodus is light brown, and carpus and merus are bluish green.

Figures

Figure 4.(A) Coenobita rugosus H. Milne Edwards,1937, female 7.3 mm (MZB Cru 5504).(B) Coenobita pseudorugosus Nakasone, 1988, male, 4.1 mm (MZB Cru 5506). (C) Calcinus gaimardii (H. Milne Edwards, 1848), male, 4.9 mm (MZB Cru 5507). (D) Calcinus laevimanus (Randall, 1840), male 4.7 mm (MZB Cru 5508). (E) Calcinus latens (Randall, 1840), male, 3.5 mm (MZB Cru 5513). (F) Calcinus morgani Rahayu and Forest, 1999 (photo in preservative), male, 1.8 mm (MZB Cru 5514). Live coloration unless indicated otherwise.