Diplommatina carneola Stoliczka 1871

Information from the abstract

2Diplommatina carneolaStoliczka, 1871 Figs 3 B, 4, 5 Diplommatina carneola Stoliczka, 1871: 152, 153, pl. 6, fig. 3. Type locality: Damotha, prope Moulmein. Pfeiffer 1875: 76, 77. Hanley and Theobald 1876: 55, pl. 140, fig. 4. Theobald 1876: 42. Godwin-Austen 1884: pl. 49, figs 8, 8 a. Godwin-Austen 1886: 182, 183. Gude 1921: 346. Diplommatina carreola [sic] — Nevill 1878: 284. Diplommatina (Sinica) carneola — Kobelt and Möllendorff 1898: 140. Kobelt 1902: 459. Type material examined. Myanmar • Syntypes. NHMUK 1871.9.23.33 (2 shells; Fig. 4 A) from Moulmein, Tenasserim, Burma; Damon ex. Stoliczka coll. • Syntype. NHMUK 1903.7.1.2279 (1 shell; Fig. 4 C) from Moulmein, Tenasserim, Burma; Stoliczka coll. Other material. Myanmar • NHMUK 1888.12.4.171 –174 (4 shells; Fig. 4 B) from Damathat, Moulmein; Theobald coll. • NHMUK 1903.7.1.2199 (1 shell; Fig. 4 D); from Moulmein, Burma; Godwin-Austen coll. • NHMUK 20240011 (1 shell); from Moulmein, Burma; Sykes coll. • NHMUK 20240012 (1 shell); from Moulmein, Burma; Salisbury coll. • CUMZ 15445 (2 shells; Figs 4 E, 4 F, 5 A), CUMZ 15446 (5 shells; Figs 3 B, 5 B) and CUMZ 15447 (72 shells) from Damathat Cave, Mawlamyine City, Mon State; 16°30'23.0"N, 97°48'36.3"E; P. Tongkerd and S. Panha leg. Description. Shell dextral, ovoid-fusiform, pale yellowish orange to yellowish. Shell height 2.0– 2.3 mm; shell width 1.3–1.4 mm. Whorls 5–6, well rounded; spire depressed conical; suture wide and deep. Protoconch ~ 1 ¾ whorls, with wrinkles and roundish malleated pits arranged in radial rows. Teleoconch with strong, regularly spaced radial ribs; ~ 5–6 ribs / 0.5 mm on both penultimate and last whorls before aperture. Last whorl slightly narrower than penultimate whorl. Spiral striations very fine and weak, and appearing throughout. Penultimate whorl wider than last whorl. Constriction externally inconspicuous; internal constriction with distinct vertical ridge. Aperture circular, with three barriers: parietalis weak, low ridge; palatalis short, slightly prominent, and situated close to internal constriction ridge; columellaris prominent, continuous with peristome, and slightly deflected downward toward palatal wall (Fig. 3 B). Peristome expanded, double; outer peristome slightly broader than inner peristome. Lip thickened, multi-layered; parietal callus thick or thin and weakly expanded. Columella short and curved. Umbilicus closed. Distribution. The species is currently known from its type locality ‘ Damotha, near Moulmein’, which corresponds to the modern locality name Damathat Cave (16°30'21.8"N, 97°49'11.5"E), Mawlamyine, Mon State, Myanmar (Fig. 1 A – C). Remarks. Among the Diplommatina species occurring in Mon and Kayin states, Myanmar, D. carneola is similar to D. polypleuris Benson, 1857 in having ovoid-fusiform shell shape (Kobelt 1902) but D. carneola presents very closely arranged transverse costae.

Why this record is monitored

This record has an Impact Signal of 70/100 based on recency, source, collaboration, and bibliographic signals. It prioritizes monitoring and is not a judgment of research quality.

Related topics: Diatoms and Algae Research · Aquatic Invertebrate Ecology and Behavior · Marine Sponges and Natural Products