Lucinoma velosoi, Kiel & Aguilar & Kase, 2020
publication ID |
https://doi.org/ 10.4202/app.00756.2020 |
publication LSID |
lsid:zoobank.org:pub:3B7C70AD-CC73-44D5-921E-B1BA0503FC29 |
persistent identifier |
https://treatment.plazi.org/id/7801672C-99B2-48F7-98AB-EB42257D6E9E |
taxon LSID |
lsid:zoobank.org:act:7801672C-99B2-48F7-98AB-EB42257D6E9E |
treatment provided by |
Felipe |
scientific name |
Lucinoma velosoi |
status |
sp. nov. |
Lucinoma velosoi View in CoL sp. nov.
Fig. 15 View Fig .
Zoobank LSID: urn:lsid:zoobank.org:act:7801672C-99B2-48F7-98AB-EB42257D6E9E
Etymology: In honur of Eduardo Veloso, the landowner of the type locality at Antipolo Point, Leyte, Philippines.
Type material: Holotype NMP-2166, disarticulated right and left valves.
Type locality: Antipolo Point, Leyte, Philippines .
Type horizon: Lower Pleistocene part of the Bata Formation.
Material.— Two specimens from the Pleistocene of Antipolo Point ( Meganodontia bed): holotype and NMNS PM 28162 ; two specimens from the Pleistocene of Cambantug Point : NMNS PM 28161 , 28163 View Materials .
Dimensions (in mm).—NMP-2166, L = 70.9, H = 63.8, W = 45.9 (articulated).
Diagnosis.—Well-inflated Lucinoma , outline rounded-oval, umbones broad, pointed, surface sculpture of numerous densely spaced, sharp commarginal ribs, few indistinct growth increments in interspaces; posterior sulcus indistinct; lunule broad, short; ligament nymph long.
Description.—Strongly and evenly inflated shell (W/H ratio of single valve = 0.37), greatest width at middle of shell; anterodorsal margin slightly concave, with angulation at transition to broadly rounded anterior margin; posterodorsal margin evenly convex, with slight angulation at transition to broadly rounded posterior margin; ventral margin evenly convex, without distinct transitions to anterior and posterior margins; escutcheon lanceolate, greatest width in posterior half; lunule short, broad, deep; hinge plate broad and thick, two thick and short cardinal teeth in each valve, cardinals 1 and 2 pointing downward, cardinals 3 and 4 pointing toward posteroventral margin; ligament nymph lanceolate, about 2/3 of length of posterodorsal shell margin; anterior adductor muscle scar moderately narrow and of moderate length for genus, reaching down to 2/3 of shell height, detached slightly from pallial for ~70% of its length; posterior adductor muscle scar elongate-oval, its lower end situated at about mid-height of shell; shell interior covered by fine striation, most strongly developed at and beyond pallial line.
Remarks.— Lucinoma velosoi differs from the similarly inflated L. tinagoensis described below by reaching a larger size ( Table 1), its more elongated shell (that of L. tinagoensis is taller) and its narrower escutcheon. The Pliocene to Recent Lucinoma galathea Marwick, 1953 from New Zealand has a more pointed umbo than L. velosoi , broader and longer ligament nymph, reaches only about 50 mm in length, whereas L. velosoi reaches 70 mm, and is less inflated than L. velosi ( Marwick 1953; Campbell et al. 2010).
Stratigraphic and geographic range.—Early Pleistocene, Leyte, Philippines.
NMNS |
National Museum of Natural Science |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.