Clausidiidae Embleton 1901

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

Figures 1–3.Clausidium rodriguesi sp. n. Female: 1 habitus, dorsal 2 urosome, dorsal 3 urosome lacking somite bearing P5, ventral. Scale bars: 1 = 100 μm; 2, 3 = 50 μm.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

Figures 21–24.Clausidium rodriguesi sp. n. Male: 21 urosome lacking somite bearing P5, dorsal 22 urosome, ventral 23 caudal ramus, dorsal 24 antenna. Scale bars: 21–23 = 20 μm; 24 = 25 μm.

Figures 25–29.Clausidium rodriguesi sp. n. Male: 25 mandible 26 mandible, detail, ventral 27 mandible, detail, dorsal 28 P1, anterior 29 P2, anterior. Scale bars: 25–27 = 10 μm; 28, 29 = 20 μm.

Figures 4–6.Clausidium rodriguesi sp. n. Female: 4 caudal rami, dorsal 5 caudal rami, ventral 6 antennule (arrow head indicating bipinnate seta). Scale bar = 50 μm.

Figures 7–13.Clausidium rodriguesi sp. n. Female: 7 antenna 8 labrum 9 mandible 10 Detail of mandible tooth 11 maxillule 12 maxilla 13 maxilliped. Scale bars: 7 = 50 μm; 8 = 10 μm; 9, 10 = 25 μm; 11–13 = 20 μm.

Figures 18–20.Clausidium rodriguesi sp. n. Female: 18 P4, anterior 19 P5, anterior. Male: 20 habitus, dorsal. Scale bars: 18 = 20 μm; 19 = 50 μm; 20 = 100 μm.

Figures 32–33.Clausidium rodriguesi sp. n. Female: Confocal laser scanning microscopy maximum projections33 habitus, dorsal 34 habitus, ventral. Scale bars: 100 μm.

Figures 34–38.Clausidium rodriguesi sp. n. Female: Confocal laser scanning microscopy maximum projections 34 urosome, dorsal 35 urosome lacking somite bearing P5, ventral 36 antenna and oral region 37 P1, anterior 38 P2-P4, anterior. Scale bars: 50 μm.

Figures 39–49.Clausidium rodriguesi sp. n.: Scanning electron microscopy photos 39 metastomal area, male 40 detail of metastomal area, male 41 detail of metastomal area, male 42 P1, anterior, female 43 P1, anterior, male 44 detail of sucking disc of P1, male 45 detail of lobe with serrate margin and distal sucking disc of enp-3 of P1, female 46 detail of P1 enp-1 adhesive fringe, male 47 sucking discs of P2, female 48 detail of serrate spine with apical flagellum of P2, female 49 detail of sucking disc of P2, female. Scale bars: 39, 40, 47 = 25 μm; 41, 44–46 = 10 μm; 42 = 35 μm; 43 = 20 μm; 48 = 12.5 μm; 49 = 4 μm.

Figures 14–17.Clausidium rodriguesi sp. n. Female: 14 P1, anterior (arrows indicating adhesive fringe) 15 detail of distal area of P1 endopod, posterior 16 P2, anterior 17 P3, anterior. Scale bars: 14 = 20 μm; 15 = 10 μm; 16, 17 = 50 μm.

Figures 30–31.Clausidium rodriguesi sp. n. Male: 30 P4, anterior 31 P5 and P6. Scale bar: 20 μm.

Description: English: Photograph of adult female Clausidium dissimile from Big Sabine Point, Santa Rosa Sound, Pensacola Beach, Florida. Date: 1984. Source: Own work. Author: ClausidiumNerd.

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