Lophopodella carteri ( Hyatt, 1866 )

Hirose, Masato & Mawatari, Shunsuke F., 2011, Freshwater Bryozoa of Okinawa, Japan, with descriptions of Rumarcanella gen. nov. (Phylactolaemata: Plumatellidae) and two new species, Zootaxa 2732, pp. 1-19 : 13-14

Lophopodella carteri ( Hyatt, 1866)

( Figure 9 )

Pectinatella carteri Hyatt, 1866: 203 .

Pectinatella davenporti Oka, 1907a: 716 , fig. 3; 1907a: 117, figs 1, 2; Annandale 1911: 234.

Lophopodella carteri: Annandale 1910: 55 ; 1911: 232, fig. 46; 1919: 96; Annandale & Kemp 1912: 143; Kraepelin 1914: 64, pl. 1(2); Loppens 1908: 166, figs 14–15; Mukai & Oda 1980: 1, figs 1–2, 6A, 7A, B, 8–13, 29, 31, 34; Oka & Oda 1948: 39, figs 1–18; Oda 1954: 211; 1955: 1, figs 1, 2, 4; 1959: 93, figs 1, 6, 7; 1965: 3, figs 9–10, 13, pls 1, 2; 1980, 238, fig. 1; 1990: 50, figs 1, 15–18; Oda & Mukai 1985: 233, figs 1, 2, 3A, B, 7C, 8B; Oda & Nakamura 1973: 523; Rogick 1934: 416; 1936: 327, pl. 36(1, 2), pl. 37(3–16); 1957: 85; Rousselet 1904: 47, 53, pl. 3(6, 7); Toriumi 1941a: 209, figs 12–14, pl. 13(13); 1941b: 423, fig. 13; 1942: 212; 1956a: 35, figs 1–33; 1956b: 57. Vorstman 1928a: 10, fig. 8, pl. 3(11); Bushnell 1965a: 239, figs 2, 3; Bushnell & Rao 1979: 85, pl. 3(2, 3); Wood 1989: 46, fig. 27; Wood & Okamura 2005: 71, 97, figs 41, 42; Wood et al. 2006: 90, figs 4, 45–46.

Lophopodella carteri var. davenporti: Rogick 1934: 420 .

Lophopodella carteri var. himalayana: Annandale 1911: 233 ; Rogick, 1934: 419.

Lophopodella carteri var. typica Rogick, 1934: 417 , pl. 41(1–3), pl. 42(1); 1935a: 250; 1935b: 457, pl. 1(1–8), pl. 2(1–5); 1935c: 155, 157; 1937: 367, pl. 1(1–6), pl. 2(7–14), pl. 3(15–19), pl. 4(20–25), pl. 5(26, 27), pl. 6(28–33), pl. 7(34–41); 1938: 178, pl. 1(1–4), pl. 2(5–10), pl. 3(11–16).

Lophopus brisbanensis Colledge, 1917: 123 , pl. 3(1–3); Hastings 1929: 305.

Lophopus carteri: Annandale 1908b: 171 , fig. 3.

Lophopus himalayanus: Annandale 1908b: 171 , fig. 4.

Lophopus lendenfeldi: Annandale, 1907b: 92 , Pl. 2(1–4).

Lophopus lendenfeldi var. himalayanus Annandale, 1907a: 145 , fig. 1; 1908a: 110.

Material examined. Several mature colonies and floatoblasts from Fukuji Dam, village of Higashi.

Description. Okinawan colonies transparent, soft, gelatinous, sac-like or lobate in form; our specimens up to about 5 mm in diameter, attached to sunken wood. Ectocyst of colony hyaline, thick, soft, not encrusted ( Fig. 9 A); ectocyst of polypides in the short, tubular colony soft. Tentacle number 68–82. Floatoblast (spinoblast) a flat, elliptical, disk, 797–821 (813±10) μm long by 614–631 (621±7) μm wide (n=5) ( Fig. 9 B). Annulus of floatoblast 153– 192 (175±15) μm wide at sides, 212–274 (240±24) μm wide at ends (n=5); floatoblast with 6–10 spines at each end; spines 40–60 μm long, with small, hook-shaped lateral projections. Both fenestra and annulus with weak surface reticulation.

Distribution. Reported from Asia ( India, Java, China, Korea, and Japan), North America, Europe, Africa, Australia, and New Zealand ( Lacourt 1968; Wood & Okamura 2005); in Japan, widely distributed from Okinawa to Hokkaido, reported mainly from large lakes on Honshu (Lake Biwa, Kasumiga-ura, Hachiro-gata) and Hokkaido (Utonai Lake).

Remarks. Hyatt (1866) first reported Lophopodella carteri from southern Asia, and the species was subsequently reported globally. Variation in the statoblasts of Lophopodella carteri has been well studied ( Rogick, 1936; Oda, 1955).

Figures

FIGURE 9. Lophopodella carteri (Hyatt, 1866). A, colony. B, floatoblast (spinoblast), dorsal view.