Key to sessile gnesiotrochan rotifers: Lacinularia and Sinantherina (Monogononta; Flosculariidae) Author Davies, Natalie 0000-0002-9118-3679 Department of Biology, Ripon College, Ripon, WI, 54971, USA daviesn@ripon.edu Author Lafleur, Alexandre 0000-0002-7312-8457 Department of Biology, Ripon College, Ripon, WI, 54971, USA lafleura@ripon.edu Author Hochberg, Rick University of Massachusetts Lowell, Lowell, MA, 01854, USA Author Walsh, Elizabeth J. Department of Biological Sciences, University of Texas at El Paso, El Paso, TX, 79968, USA Author Wallace, Robert L. 0000-0001-6305-4776 Department of Biology, Ripon College, Ripon, WI, 54971, USA wallacer@ripon.edu text Zootaxa 2025 2025-01-22 5575 1 177 193 https://doi.org/10.11646/zootaxa.5575.1.10 journal article 307945 10.11646/zootaxa.5575.1.10 ea4c9e67-5bef-4ff6-80c5-5011e87d1317 1175-5326 14746510 4A8FA00A-68B6-4B59-B6D2-544419B5C1BA

TABLE 3. Important characteristics of Sinantherina species.

Taxa	Planktonic or Sessile	Warts	Spines	Eyespots	Ventral sinus	Dorsal gap	Coloniality
semibullata	Planktonic	1 pair	Absent	Present	Shallow	Distinct, but	Colony comprised of
						narrow	individuals of different ages
procera	Sessile	2 pair	Absent	Absent	Deep	Tiny	Colonial
socialis	Sessile	2 pair	Absent	Absent	Deep and narrow	Tiny	Colony comprised of individuals of the same age
ariprepes	Sessile	Absent	Absent	Absent	Moderate	Tiny	Colony comprised of individuals of different ages
spinosa	Planktonic	Absent	Present	Present	Shallow	Small	Colony comprised of individuals of different ages