Notopterophoroides Schellenberg, 1922

Kim, Il-Hoi & Boxshall, Geoff A., 2020, Untold diversity: the astonishing species richness of the Notodelphyidae (Copepoda: Cyclopoida), a family of symbiotic copepods associated with ascidians (Tunicata), Megataxa 4 (1), pp. 1-6 : 171

Genus Notopterophoroides Schellenberg, 1922

Diagnosis: Prosome typically consisting of cephalothorax incorporating first pedigerous somite plus 3 defined pedigerous somites. Fourth pedigerous somite forming brood pouch and fused with fifth pedigerous somite. Sclerotized sternal spikes present on cephalothorax and second and third pedigerous somites in some species. Free urosome 5-segmented, comprising genital somite and 4 abdominal somites. Anal somite produced ventrally. Caudal rami armed with 3 claws and 3 setae. Antennule 7- segmented.Antenna 4-segmented; basis withlarge pinnate exopodal seta; compound distal endopodal segment armed with 9 setae plus terminal claw. Mandible with 5 teeth and 1 or 2 proximal setae on coxal gnathobase, basis with 1 seta; exopod 2-segmented and armed with 3 and 2 setae on first and second segments, respectively; endopod 2-segmented, armedwith 4 and 9 setaeonfirst and second segments, respectively. Maxillulewith 9 setae on arthrite, 1 setaon coxal endite, 2 setaeon epipodite, 3 setae on medial margin of basis; exopod with 3 distal setae; endopodwith 4 distalsetae. Maxilla 5-segmented; syncoxawith 3, 1, 2, and 2/3 setae onfirst tofourth endites, respectively; basis with 3 setae; first to third endopodal segments with 1, 1, and 3 setae, respectively. Maxilliped lobate with 11 setae (9 medial and 2 apical). Leg 1 with 3- segmented exopod and 2-segmented endopod. Legs 2–4 with 3-segmented rami. Inner coxal seta lacking in legs 1–4. Inner distal spine present on basis of leg 1. Armature formula:

	Coxa	Basis	Exopod	Endopod
Leg 1	0-0	1-I	I-1; I-1; 1, II, 4	0-0; 1, 2, 3
Leg 2	0-0	1-0	I-0; I-0; III, I, 4	0-1; 0-2, 1, 2, 3
Leg 3	0-0	1-0	I-0; I-0; II, I, 4	0-1; 0-2, 1, 2, 3
Leg 4	0-0	1-0	I-0; I-0; II, I, 4	0-1; 0-2; 1, 2, 2

Leg 5 consisting of protopod armed with outer seta and exopodal segment bearing 2 setae; protopods of leg pair fused to form transverse protopodal plate in some species.

Type Species: Notopterophoroides armadillo Schellenberg, 1922 by subsequent designation ( Lang, 1948).

Remarks. The morphological boundaries delimiting this genus from Ustina and Goniodelphys are subtle. Stock (1967), in his key to the genera of the Bonnierilla - group, highlighted the linear exopodal segment of leg 5 armedwith 2 setal elements, the 3-segmented state of the endopods of legs 2–4, and the brood pouch chiefly involving the fourth pedigerous somite, as key characters. Stock (1967) also proposedto transfer N. malacodermatus to the genus Botachus . However, this latter proposal was essentially reversed by Ooishi & Illg (1973). They concluded that N. malacodermatus should be retained in its original genus. Here we follow Ooishi & Illg (1973).