Euglandina rosea (Férussac, 1821) Eggs And Egg Laying (Page Two)

Case Study Number Two

    The two Euglandina pictured below (shown mating on 6/28/2011) were collected in separate areas of Jacksonville, Duval County, Florida and maintained in a makeshift terrarium. The specimen pictured on the bottom was collected on 4/7/2011 and measures 48.8 mm. while the specimen pictured at the top measures 57.2 mm. and was taken into captivity on 4/25/2011. On 6/27/2011 one of the pair, probably the smaller of the two, deposited 16 calcareous eggs in the terrarium. This is the same specimen which had previously deposited 35 eggs on 5/20-21/2011 (see case study one on previous page).

    The 16 eggs (pictured below) were isolated in their own makeshift terrarium, kept moist and maintained at room temperature (79 degrees), and monitored on a periodic basis for developments. After 31 days none of the eggs had exhibited any signs of hatching. The eggs were then opened and all 16 were confirmed to be infertile.