Teuthowenia pellucida (Chun, 1910)

Bolstad, K. S. R., Perez, J. A. A., Strugnell, J. M. & Vidal, E. A. G., 2014, Cranchiids of the South Atlantic Mid-Oceanic Ridge: results from the first southern MAR-ECO expedition, Journal of Natural History 49 (21), pp. 1351-1371 : 1363

Teuthowenia pellucida

was represented by three specimens (ML 10.4–28.9 mm, Figure 5E, F). The tentacle club ( Figure 6C ) was slightly expanded but not clearly differentiated from the stalk, which bore the characteristic transverse rows of four suckers. From the point in the carpal region at which the dorsal and ventral membranes originated, the club bore ~20 transverse rows of suckers, gradually increasing in size through rows 5–8 and largest in the ventral two series. The sucker rings bore two rows of small, round- and concave-faced pegs proximally and two to three rows distally, with six to eight longer teeth produced from the distal inner margin of the infundibular ring. In some suckers, particularly on the distal portion of the club, the teeth continued proximally to a total of about 16 teeth spaced around the entire inner margin; in the more proximal suckers, these teeth were often reduced and sometimes merged into low triangular processes.

Figures

Figure 6. Tentacle clubs of taoniin species. (A) Helicocranchia cf. pfefferi, ME 38898, mantle length (ML) 12.8 mm; (B) Megalocranchia sp., ME 39935, ML 59.2 mm; (C) Teuthowenia pellucida, ML 39697, ML 28.9 mm. Scale bars = (A) 500 µm, (B) 1 mm, (C) 100 µm.