Pseudopotamilla

Knight-Jones, Phyllis, Darbyshire, Teresa, Petersen, Mary E. & Tovar-Hernández, María Ana, 2017, What is Pseudopotamilla reniformis (Sabellidae)? Comparisons of populations from Britain, Iceland and Canada with comments on Eudistylia and Schizobranchia, Zootaxa 4254 (2), pp. 201-220: 214

publication ID

https://doi.org/10.11646/zootaxa.4254.2.3

publication LSID

lsid:zoobank.org:pub:88B33DE9-BCF2-4AE4-A1B4-F0D39DCDF5C3

persistent identifier

http://treatment.plazi.org/id/747D7A68-FFD3-061E-FF41-FD2CFA56F2DA

treatment provided by

Plazi

scientific name

Pseudopotamilla
status

 

Key to Pseudopotamilla  species described here

1. Collar with high, well-developed, rounded lappets dorsally ( Fig. 1View FIGURE 1 D); dorsal margins V-shaped ( Figs 1View FIGURE 1 D, 2A); and peristomium well exposed dorsally ( Fig. 1View FIGURE 1 D, 1A) and laterally above collar margins ( Fig. 2View FIGURE 2 C)...... P. reniformis ( Bruguiére, 1789) 

- Collar with low, rounded lappets dorsally ( Figs 4View FIGURE 4 C, 5C); dorsal collar margin convex ( Figs 4View FIGURE 4 C, 5C); and peristomium slightly exposed laterally ( Fig. 4View FIGURE 4 B) or not exposed above collar margins ( Fig. 5View FIGURE 5 B–C)..................................... 2

2. Lateral margins of collar V-shaped ( Fig. 4View FIGURE 4 B); handle of each companion chaeta twice length of handle of adjacent uncinus ( Fig. 4View FIGURE 4 K)........................................................................ P. aspersa ( Krøyer, 1856) 

- Lateral margins of collar even (in line with the horizontal body axis) ( Fig. 5View FIGURE 5 B); handle of companion chaeta slightly longer than handle of adjacent uncinus ( Fig. 5View FIGURE 5 H)......................................... P. saxicava ( Quatrefages, 1866)  .