Coullia Hamond, 1973

Huys, Rony, 2009, On the junior subjective synonyms of Coullia Hamond, 1973 (Copepoda, Harpacticoida, Laophontidae): an and key to species and related genera, ZooKeys 5 (5), pp. 33-40 : 35-36

Coullia Hamond , 1 973

Amended diagnosis. Laophontidae . Body fusiform. Integument of cephalothorax and body somites usually with minute spinules; posterior margins of somites spinulose. Rostrum partially delimited at base; broadly rounded, not prominent. Genital doublesomite ♀ with ventrolateral internal chitinous ribs marking original segmentation. Pleural extensions of ♀ abdominal somites small. Caudal ramus cylindrical, subrectangular and elongate; with 7 setae; setae IV and V well developed, fused at base, and with fracture plane; seta VI reduced, setiform. Anal operculum spinulose.

Sexual dimorphism in antennule, P2–P3 exopod, P3 endopod, P5, P6 and in genital segmentation. Occasionally in P4 exopod.

Antennule moderately slender and 6- or 7-segmented in ♀; 7-segmented and subchirocer with 2 segments distal to geniculation in ♁; segment 1 occasionally with small blunt process; with aesthetasc on segment 4 (♀) or 5 (♁) and as part of acrothek on apical segment; all segments usually with spinular ornamentation along posterior margin. Antenna with 4 setae on exopod; allobasis with abexopodal seta. Mandibular palp relatively short, 1-segmented; with 1 basal, 1 exopodal and 3 endopodal setae. Maxillule with defined exopod bearing 2 setae. Maxilla with 3 endites on syncoxa; endopod represented by 3 setae. Maxilliped elongate; syncoxa with 2 setae; basis usually with few spinules along palmar and outer margins; endopodal claw long and curved, with 1 accessory seta.

P1 long, with very elongate coxa and basis; with 2-segmented exopod, exp-2 with 2–3 short and 2 geniculate setae; endopod stout, enp-1 without inner seta, enp-2 with minute seta and long strong claw. Swimming leg exopods 3-segmented; without inner setae in ♀ (except P2 exp- 2 in C. tongariki ); inner apical element of distal exopod segment vestigial (except P 4 ♀ in C. insularis / tongariki ). P2–P3 exopodal spines smooth or with minute ornamentation. P4 exopod smallest and squat; spines clearly pinnate. P2– P3 exp-2 (where known) with inner seta in ♁. P2–P4 endopods 1- or 2-segmented, occasionally absent in P2. P2 endopod smaller than those of P3–P4; if 2-segmented, inner distal corner of P2 enp-1 usually drawn out into tube-pore. P3 endopod ♁ 2-segmented with enp-2 extending into sharp, curved apophysis. Armature formula as follows:

	Exopod	Endopod
P2	0.0.023 [♁: 0.1.023]	0.020 or 010 or absent
P3	0.0.023 [♁: 0.1.023]	0.0(1-2)(0-1) or 021 [♁: 0.020]
P4	0.0.02(2-3) [♁: 0.1.022]	0.0(1-2)1 or 02(0-1)

P 5 ♀ large, with separate rami; exopod elongate-oval, reaching far beyond endopodal lobe, with 6 setae; endopodal lobe moderately developed, with 3–5 setae. Fifth pair of legs in ♁ not fused medially; baseoendopod free at base; endopodal lobe minute, with 2 long setae; exopod longer than wide, with 5 setae.

P 6 ♀ forming opercula closing off paired genital apertures, with 2 setae; P6 ♁ asymmetrical; membranous flaps with 2 setae.

Copepodids IV–V with modified P 4 in ♀ (cf. Fiers 1998).

Marine; frequently on algae or decapods ( Xanthidae , Majidae ).

Type species. Coullia heteropus Hamond, 1973 [by original designation].

Other species. Laophonte ? platychelipusoides Noodt, 1958 = C. platychelipusoides ( Noodt, 1958) ; Hemilaophonte clysmae Por & Marcus, 1973 = C. clysmae ( Por & Marcus, 1973) ; Phycolaophonte insularis Pallares, 1975 = C. insularis (Pallares, 1975) comb. nov.; Eolaophonte mediterranea Apostolov, 1990 = C. mediterranea ( Apostolov, 1990) comb. nov.; Phycolaophonte tongariki Gómez & Boyko, 2006 = C. tongariki ( Gómez & Boyko, 2006) comb. nov.