Dulzura J.L. Barnard, 1969

Springthorpe, R. T. & Lowry, J. K., 2009, Hadziidae *, Zootaxa 2260 (1), pp. 434-439 : 434-435

Dulzura J.L. Barnard, 1969

Dulzura J.L. Barnard, 1969: 114 . — Barnard & Barnard, 1983: 655, figs 12–14, 41, map 53. Type species. Dulzura sal J.L. Barnard, 1969 , original designation.

Protohadzia Zimmerman & Barnard, 1977: 569 . — Barnard & Barnard, 1983: 653, map 56. Type species. Eriopisa schoenerae Fox, 1973 , original designation.

Diagnosis. Mandible palp article 3 slightly falcate, very long, about 4.5 x as long as broad, subequal to or longer than article 2. Maxilla 1 inner plate with setae along medial margin. Lower lip without inner lobes. Maxilliped palp article 3 with patch of short, dense setae. Gnathopods 1–2 carpi without posterior lobe. Pereopod 4 coxa without posteroventral lobe. Gills on gnathopod 1 and pereopods 3–6, stalked with proximal suture. Uropod 1 with or without basofacial robust seta. Uropod 2 peduncle with distomedial comb of setae. Uropod 3 inner ramus about half length of outer; outer ramus with 2 articles. Telson longer than broad, with or without lateral robust setae.

Included species. Dulzura includes 8 species: D. gal J.L. Barnard, 1979 ; D. hamakua (J.L. Barnard, 1970) ; D. lobata Stock & Vonk, 1991 ; D. melitaformis ( Ledoyer, 1979) ; D. paucispinosa Ledoyer, 1983 ; D. sal J.L. Barnard, 1969 ; D. schoenerae ( Fox, 1973) ; D. taylorae sp. nov.

Remarks. Barnard & Barnard (1983) diagnosed both Dulzura and Protohadzia Zimmerman & Barnard, 1977 , but the distinctions between them have never been strong. The main character that Zimmerman & Barnard (1977) used to separate P. schoenerae from Dulzura was the projecting apical shelf on the palm of male gnathopod 2. Ledoyer (1979) originally placed D. melitaformis in Protohadzia based on this character. In other species of Dulzura the palm has no apical shelf. Another character used to distinguish Protohadzia has been the distal patch of short setae on article 3 of the maxillipedal palp. It has not been illustrated or described for D. gal , D. hamakua , and D. melitaformis . It is clearly present in P. schoenerae , D. lobata and in D. taylorae and there is a form of patch in D. paucispinosa . There is apparently no patch in D. sal . The palm of male gnathopod 2 with or without dense setae is a variable character and all species have a form of setation. In species of Dulzura and P. schoenerae sexually dimorphic second gnathopods all look very similar in the females. Protohadzia schoenerae has lateral setae on the telson, but so do other species such as D. taylorae . All species including Protohadzia schoenerae lack inner lobes on the lower lip. The distomedial comb-row of setae on the peduncle of uropod 2, a strong apomorphic character, occur in all species including P. schoenerae . For these reasons we are synonymising Protohadzia with Dulzura .

Stock & Vonk (1991) mention sexual dimorphism in the rami of uropod 3 for some species of Dulzura , but apparently not in D. taylorae . The monotypic genus Gammaropisa Ruffo & Vigna Taglianti, 1988 , which has sexually dimorphic third pleopods, appears to be similar to Dulzura . The only apparent differences between these genera appears to be the absence of a distomedial comb on the peduncle of uropod 2 in Gammaropisa .