Medlinella amphoroidea gen. et sp. nov. (Bacillariophyta) from the neck skin of Loggerhead sea turtles (Caretta caretta) Author Frankovich, Thomas A. Florida International University, Florida Bay Interagency Science Center, 98630 Overseas Highway, Key Largo, FL 33037, USA frankovich@virginia.edu Author Ashworth, Matt P. University of Texas, Department of Integrative Biology, Austin, TX 78712, USA. Author Sullivan, Michael J. 130 Martinique Drive, Madison, MS 39110, USA. Author Veselá, Jana Academy of Natural Sciences of Drexel University, 1900 Benjamin Franklin Parkway, Philadelphia, PA 19103, USA. Author Stacy, Nicole I. University of Florida, College of Veterinary Medicine, Large Animal Clinical Sciences, Gainesville, FL 32641, USA. text Phytotaxa 2016 2016-08-29 272 2 101 114 http://dx.doi.org/10.11646/phytotaxa.272.2.1 journal article 10.11646/phytotaxa.272.2.1 1179-3163 13647233 Tripterion philoderma Holmes, Nagasawa & Takano ( Fig. 32 ) LM morphology: Valve morphometrics are as follows: length 8.5–28.0 μm, maximum width 2.0–4.0 μm, length-to-width ratio 3.3–7.5, n = 75. The transapical striae are radiate in the middle of the valve, 22–26 in 10 μm, n = 34, becoming parallel to slightly convergent at the apices, up to 29 in 10 μm, n = 34. Copulae are open at one end and do not have septa (arrows in Fig. 32 ). Type:— SOUTH AFRICA . Milnerton, specimens from the teeth of Mesoplodon layardii (strap-toothed whale), 33° 52’ S 18° 29’ E , R . W . Holmes , 6 April 1978 ( holotype ANSP ! GC 17182a).