Careproctus Kroyer 1862

Key to Ross Sea Careproctus

1a. Vertebrae more than 50.................................................................................... 2

1b. Vertebrae fewer than 50.................................................................................... 5

2a. Vertebrae more than 60, HL 16% SL, D 60.......................................... C. inflexidens Andriashev & Stein

2b. Vertebrae 50–60, HL greater than 20% SL, D 52 or fewer......................................................... 3

3a. P rays fewer than 23, pyloric caeca absent, ma ~16% SL, aAf ~17% SL............ C. pseudoprofundicola Andriashev & Stein

3b. P rays more than 24, pyloric caeca present, ma greater than 20% SL, aAf 15% SL or less............................... 4

4a. Pyloric caeca 4–6, preA less than 39% SL, radials 3 (2+0+1).................................... C. polarsterni Duhamel

4b. Pyloric caeca 10–12, preA greater than 43% SL, radials 2 (1+0+0+1).................... C. vladibeckeri Andriashev & Stein

5a. P rays 25 (14–15+3–4+7), radials 2 (1+0+0+1), disk 20% HL............................ C. ampliceps Andriashev & Stein

5b. P rays 37–38 (28–29+9), radials 4 (3+1), disk 40–43% HL.............................. C. catherinae Andriashev & Stein