Parechinolaophonte, Song & Lee & Kim & George & Khim, 2023

Song, Sung Joon, Lee, Sang-kyu, Kim, Mijin, George, Kai Horst & Khim, Jong Seong, 2023, Phylogenetic revision of Echinolaophonte Nicholls (Copepoda, Harpacticoida, Laophontidae T. Scott) including the establishment of two new genera and two new species, Zoosystematics and Evolution 99 (1), pp. 217-252 : 217

Parechinolaophonte gen. nov.

Diagnosis.

Laophontidae T. Scott, 1905. Body elongate, cylindrical, podoplean boundary between pro- and urosome inconspicuous. Whole body minutely punctate. Sexual dimorphism in A1, P5 and P6; female with GDS. Cphth reaching about 1/3 of total body length; lateral margins of cphth extended outwardly, triangular; distal outer edges of cphth with paired backwardly directed protrusions, dorsally with longitudinal cuticular ridge crossed by 2 furrows. Rostrum fused to cphth, laterally constricted, almost square. Body somites without pronounced dorsal cuticular processes; abdominal somites, except telson, with weakly developed cuticular spinulose structures on posterior margins. Pseudoperculum weakly developed, consisting of 4 small protrusions bearing several fine spinules apically. CR about twice as long as broad, with 7 setae (cf. Wells and Rao (1987), fig. 143i). Female A1 slender, 6-segmented; male A1 subchirocer, number of segments unknown. A2 with 1-segmented exopod bearing 4 setae, allobasis with 1 abexopodal seta; endopod 1-segmented, with 2 lateral spines and 5 apical setae/spines (cf. Wells and Rao (1987), fig. 143j). Mxp prehensile, syncoxa and basis of approximately the same length; syncoxa with 1 pinnate seta on apical margin, basis with spinulose field on anterior margin; claw massive, accompanied by minute seta. P1 prehensile, with extremely elongated coxa and basis, the former massive and larger than the latter, nearly reaching the length of enp-1. Exopod 2-segmented, more than half the length of enp-1; exp-1 half as long as exp-2, with 1 outer spine, exp-2 with 3 outer and 2 apical spines/setae. Endopod 2-segmented, enp-1 extremely elongated, massive, enp-2 small, apically with 1 strong curved claw and 1 tiny seta. P2-P4 with 3-segmented exopods and 2-segmented endopods. Female P5 with baseoendopod bearing 4 setae; exopod fused with baseoendopod, with 3 setae. Male P5 with completely reduced baseoendopod, exopod small and distinct, with 3 setae. Female "genital field simple, without trace of P6" ( Wells and Rao 1987: 177); male P6 small, with 1 seta and 1 strong spine.

Etymology.

The generic name is composed of the Greek prefix pará -, meaning similar and the generic name Echinolaophonte . Gender: feminine.

Type and only species.

Parechinolaophonte tropica (Ummerkutty, 1970), gen. et comb. nov., by original designation.