Gruberia calkinsi Beltrán, 1933

Park, Mi-Hyun & Min, Gi-Sik, 2016, Morphological reports of four ciliates (Ciliophora) from coastal marine and brackish water habitats in Korea, Journal of Species Research 5 (3), pp. 514-516 : 514

1. Gruberia calkinsi Beltrán, 1933 ( Fig. 1A, B )

Diagnosis. Live cell 440­1,000 μm in length; anterior slightly curved, contractile, posterior narrowed in shape; peristome about 1/2­2/3 of cell in length; 36­45 somatic kineties; 273­441 adoral membranelles; macronuclei, moniliform, 9­15 in number.

Material examined. On October 24, 2014, at Seonnyeobawi Beach , the Yellow Sea , Korea (37°26′N, 126°22′E). Voucher slides. A slide of protargol­impregnated specimens was deposited at the National Institute of Biological Resources, Korea (NIBRPR0000106616) .

Remarks. In this study, the genus Gruberia is firstly reported from Korea. Gruberia calkinsi is similar to G. beninensis Dragesco and Dragesco­Kernéis, 1986 with respect to cell size and form of macronucleus ( Al­Rasheid, 2001). However, G. calkinsi can be distinguished from the G. beninensis population redescribed by Al­Rasheid (2001) in the number of adoral membranelles (273­441 vs. 130­170).

Figures

Fig. 1. Photomicrographs of four ciliates on the basis of live observation (A, C, E, H) and after protargol impregnation (B, D, F, G, I). A, B, Gruberia calkinsi, left side view of a living specimen (A) and right side view of a protargol­impregnated specimen (B); C, D, Dysteria crassipes, left side views of living (C) and protargol­impregnated (D) specimens; E­G, Zosterodasys agamaliev, ventral view of a living specimen(E), and ventral (F) and dorsal (G) views of potargol­impregnated specimens; H, I, Pleuronema salmastra, ventral views of living (H) and protargol­impregnated (I) specimens. Scale bars:A=500 μm, B=300 μm, C, D=30μm, E, H=50μm.