Planche 1 issued from : Sewell R.B.S. in Rec. Indian Mus., 1912, 7. [Plate XVII, Figs.1-7].
Male (from Bay of bengal): 1, habitus (lateral view); 2, A1; 3, P1; 4, P2; 5, P5 (right side); 6, P5 (left side).
Nota: Head and 1st thoracic segment separate, 4th and 5th separate. Grasping of right A1 has the knee-joint between the 18th and 19th segments; 10th, 11th and 12th segments all bear a curved spine-like process on the anterior surface, 17th segment bears a toothed-plate which is somewhat longer than the segment itself and is prolonged over the proximal part of the 18th segment; 19 th segment bears teeth the whole length of the segment and is then produced as a spinous process beyond the distal extremity.

Female: 7, P5.
Nota: Head and 1st thoracic segment separate, 4th and 5th separate; the posterior border of the last segment is rounded and near the ventral border presents a short backwardly directed spinous process. Rostrum small and bifid. Abdomen 3-segmented, symmetrical; Proportional lengths of urosomites and furca as 35:23:20:15; the 1st segment bears on each side a clump of small needle-shaped spines. A1 (24-segmented) do not reach to the end of the thorax; there are no spines on any of the proximal segments.

Planche 2 issued from : S. Wellershaus in Veröff. Inst. Meeresforsch. Bremerh., 1970, 12. [p. 465, Figs. 1-13].
Male (from Cochin Backwater, S. India): 3, habitus (lateral view, right side); 5, idem (dorsal view); 10, P5 (posterior aspect); 14, right A1 (segments 19-21, ventral aspect); 15, right A1 (dorsal aspect).

Female: 1, habitus (lateral, right side); 2, Md (mandibular palp); 4, Md (masticatory edge); 6, Mxp; 7, thoracic segment 5 and urosome (lateral, left side); 8, distal part of thoracic segment 5 and genital complex (lateral, right side); 9, A2; 11, P1- P4 (posterior aspect); 12, right P5 (posterior aspect; left leg is alike).

Copepodit V female: 13, right P5 (posterior aspect; left leg is alike).
Scale : single line = 0.1 mm ; double line = 0.05 mm.

Planche 3 issued from : S. Wellershaus in Veröff. Inst. Meeresforsch. Bremerh., 1970, 12. [p.468, Figs. 14-16].
Male: 14, right A1 (segments 19-21; ventral aspect); 15, right A1 (with details, not all setae drawn; dorsal aspect).

Female: 16, right A1.

Planche 4 issued from : M. Saraswathy in Proc. Symp. Crustacea.- Symp. Ser. mar. biol. Ass. India, 1966, 2 (1). [p.82, Fig.1 (1-2)].
Female (from Trivandrum coast, SW India): 1, P5; 2, ultimate segment of A2.
Nota: Sewell figures the inner spines on the 2nd exopod segment of female P5 without any spines. But in the present specimens there are 2 rows of minute teeth. The ultimate segment of A1 is provided with a thick spine-like process and a few setae (as in C. trispinosus), but this is not shown in Sewell's illustration.