Plate 1 issued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.158, Fig.120].
Female (specimen from the Philippines Sea). Ce: forehead (dorsal, left aand right lateral, respectively; CP4: coxopod of P4.

Nota: Cephalothorax 4.0-4.6 times longer than urosome.
Rostrum small, pointed.
A1 23-segmented, reaching the end of caudal rami.
Exopod of A2 2.6 times longer than endopod; endopodal segment 2 with 6 setae on each lobe.
Gnathobase of Mx1 with 3 setae on posterior surface, and 4 and 2 setae (Tanaka & Omori, 1969, mentioned 3 setae) on 2nd and 3rd internal lobes respectively; protopodite near endopod base with 3 setae; endopod with 4 setae (3 after Tanaka & Omori, 1969); exopod with 11 setae; external lobe with 7-8 setae.
Genital segment nearly as long as wide, asymmetrical, with small projection on back side in posterior half on the left (dorsal and lateral view)

Plate 2 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.61, Fig.4, c].
Female: c, helmet-shaped crest on forehead (left lateral side).

Plate 3 issued from : C.B. Wilson in Bull. U.S. natn. Mus., 1950, 100, 14 (4). [Pl. 10, Figs.101, 103, 104-105].
Female (from 18°47'S, 89°26'W): 101, habitus (dorsal); 103, idem (lateral); 104,Mx2; 105, Mxp.

Plate 4 issued from : C.B. Wilson in Bull. U.S. natn. Mus., 1950, 100, 14 (4). [Pl. 9, Figs.98-100].
Female: 98, A2; 99, Md; 100, P4.

Plate 5 issued from : O. Tanaka & M. Omori in Publ. Seto mar. Biol. Lab., 1969, XVII, 1. [p.46, Fig.5].
Female (from Pacific): a-b, forehead (dorsal and lateral, respectively); c-d, last thoracic segment and urosome (dorsal and lateral, respectively); e, A2; f, Mx1; g, P1; h, P4; i, lateral spine of the 1st basal segment of P4.

Plate 6 Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892, 19 , Atlas von 54 Tafeln. [Taf.36, Fig.22]. As Euchirella galeata.
Female: 22, urosome (lateral).

Plate 7 Euchirella grandicornis female:
1 - Genital segment asymmetrical.
2 - Crest present.
3 - Coxopodite of P4 with 1 spine.
4 - Posterior corners of last thoracic segment symmetrical, rounded-rectangular (dorsal and lateral view). Endopodal segment 2 of A2 with 6 setae on each lobe.
5 - Crest low.

Plate 8 issued from : J.C. von Vaupel Klein in Crustaceana, Supplt 9, Studies on Copepoda, III, 1984. [p.66, Fig.7, e].
Euchirella grandicornis e, A2 arrangements of spinules and hairs on the posterior edge of endopodite 2+3 (right appendage of medial view ): ± 10 long spinules distally plus a proximal bundle of more than 10 thin hairs (or: hair-like spinules).

Plate 9 Issued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.93, Table II ].
Euchirella grandicornis Female: Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).

Plate 10 Issued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.94, Table II (cont' d) ].
Euchirella grandicornis Female: Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).

Plate 11 Issued from : J.C. von Vaupel Klein in Crustaceana, (Supplement) 9, 1984. [p.95, Table II (cont' d) ].
Euchirella grandicornis Female: Datamatrix stating observed states of characters from Table I (p.87-90) presently examined; nos. refer to the input nos. used in Table I (see to the family Aetideidae).