Bairdoppilata
- Dataset
- New and poorly known species of Bairdoppilata and Paranesidea (Bairdiidae, Ostracoda) from French Frigate Shoals and O’ahu, the Hawaiian Islands
- Rank
- GENUS
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Ostracoda
- order
- Podocopida
- family
- Bairdiidae
- genus
- Bairdoppilata
materials_examined
Material. One adult female specimen 3963 F. Dimensions. Adult female 3963 F, carapace measured before dissection: Length 1084 µm, height 732 µm. See also Table 1 and Figs. 2 and 4. Descriptive comments. Carapace rounded-subtriangular in lateral outline, with very high-arched dorsal margin and nearly straight, steeply sloping anterodorsal margins, lacking angles; greatest height 0.67 of length, located at 0.64 of length; anterodorsal corner not distinguishable, located approximately at 0.33 of length and 0.89 of height; posterodorsal corner not distinguishable, located approximately at 0.67 of length and 0.84 of height; anterodorsal brim located at 0.69 of height; posterodorsal brim located at 0.43 of height; greatest height of ventral indentation located at 0.38 of length and 0.7 of height. Slope (measured from horizontal) of mid-dorsal margin 1 o, of anterodorsal margin 38 o, of posterodorsal margin 44 o, of dorso-caudal margin 35 o, of hinge 1 o. Caudate, with weak concavity separating dorsal-caudal margin from posterodorsal margin; length of caudal process 0.06 of length. Plumose setae with barely visible barbs. Hinge striate, ends only slightly expanded and scalloped. Surface apparently smooth, with distinct reticular pattern of micropapillae. Seta 2 of furca with a proximal cluster of about 8 lateral barbs (on each side), followed by much tinier barbs or nearly smooth distally. Comparisons. B. sp. 4 is significantly larger than most shallow-water species (Fig. 4). The broadly arched dorsal margin and gently extended caudal process place B. sp. 4 in shape group 3, together with B. alcyonicola, B. cratericola and B. cushmani. From all of these it differs by the smooth surface with micropapillate microornament, which may reflect cell arrangement in the underlying epidermis.