Tag Archives: orthalicus

Photo of the day (159): Orthalicus

Richard Goldberg posted a photo of a Jamaican Orthalicus on his Facebook timeline. A nice picture of this animal in its natural habitat.

Orthalicus jamaicensis

Richard text was: A ± 2 inch Orthalicus undata jamaicensis Pilsbry, 1899 [Family: Orthalicidae] aestivating on the trunk of a Jamaican Otaheiti Apple Tree (Syzygium malaccense?) near the Whitehall Great House ruins, Westmoreland Parish, Jamaica. The Otaheiti or Maple Apple is indigenous to the Pacific Islands, but commonly found throughout Jamaica. Jamaican’s also refer to the fruit as a coco plum. Orthalicus prefer to inhabit these trees because of the somewhat smooth bark of the trunk and more likely because it feeds on the overly ripe apples that open to expose the sweet fruit within. Photo: Richard L. Goldberg © 2014.

More on Aruban Orthalicus

Gerard van Buurt (Cura??ao) send me some remarks on previous posts; today about Aruban Orthalicus.

The report of Orthalicus maracaibensis from Aruba was based on the finding of this species at two localities at the North side of the island. This led Gerard to believe it might be a case of washing ashore, caused by currents from Paraguan?? on the opposite coast of Venezuela. He had seen a similar case with a grasshopper, Tropidacris cristata, which was washed ashore at Boca Grandi in 2006. According to him “the presence [of these snails] at these localities [Boca Prins and Punta Braboe] does not point to a distribution influenced by humans; it is probably also not a relict faunal element either”. It must be noted that this species occurs on the Paraguan?? peninsula on hills (Cerro de Santa Ana and Filo de Monte Cano are mentioned by GvB), but I found it close to the sea in the National Park “Henri Pittier” (Breure, 1976, CorrBl. Ned. Malac. Ver. 172: 569-572, 585-587); this is further to the east than Paraguan??.

Orthalicus from Aruba

Bill Frank has posted new photographs on his website with Orthalicus maracaibensis forma imitator Pilsbry, 1899. 

Schermafbeelding_2011-02-04_om

This form was identified by Harry Lee, who noted “it should have microscopic spiral striation visible on the body whorl, which feature allow separation from the smooth O. floridensis“.
The shells were found on Aruba, near the top of the dunes at Boca Prins, in 1958-1960. The species was also occasionally found at Punta Braboe.

The full series of shells can be here http://www.jaxshells.org/itoo.htm