Mesodon thyroidus (Say, 1817) White-lip Globe

White-lipped Globe Videos
   The yellow colored counties on the map below show where Mesodon thyroidus have thus far been found in Florida. The map is based upon local knowledge of northeast Florida collectors (B. Frank, H. G. Lee, H. McCullagh) and the 96 lots housed in the Florida Museum of Natural History in Gainesville, Florida. In northeast Florida (Duval, Clay, Nassau and St. Johns Counties) the species might best be described as a rarely found and in very limited numbers but at one particular location very abundant and easily found (flood plain of Little Black Creek in Clay County). See: Some Mesodon thyroidus From The Flood Plain Of Little Black Creek.

In northeast Florida the species has not been found in Duval or Nassau Counties. Finds in the remaining two counties include:

St. Johns County - six locations:

  • 1. Swampy area adjacent to US-1 about 12 miles north of St. Augustine (one empty aged juvenile shell and a recently deceased adult specimen).
  • 2. Flood plain of Six mile Creek on Pacetti Road (small number of empty shells)
  • 3. Flood plain of Six Mile Creek on County Road 13
  • 4. Flood plain of Trout Creek on County Road 16A - empty shells present and live specimen on Cypress tree about 6 feet above ground (1977).
  • 5. Forested area along County Road 208 about 4.2 miles west of Picolata (small number of empty shells and one living specimen).
  • 6. Flood plain of Cracker Branch on County Road 204 just west of the intersection of CR-204 and US-1 - live specimens on Cypress trees about 3-6 feet above sodden ground (1978).

Clay County - four locations:

  • 1. Flood plain of Little Black Creek on County Road 220 in Middleburg (hundreds of both empty shells and living specimens)
  • 2. Scrub habitat along Gas Line Road northeast of Keystone Heights (three empty juvenile shells)
  • 3. Crosby Sanctuary, Orange Park (2010)
  • 4. Forested area off Alderman Road, Melrose (one living specimen - 4/2015)

Mesodon thyroidus (Say, 1817) White-lip Globe

Mesodon thyroidus (Say, 1817) White-lip Globe

Under leaf litter in the flood plain of Little Black Creek, County Road 220, Clay County, Florida, February, 2016

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