BOSMINIDAE, BAIRD 1846 (family)
Second antenna with dorsal branch 3-segmented and ventral branch
4-segmented. First antenna fused with the rostrum of head, forming a snout like formation. Feeds on small phytoplankton algae and/or bacteria depending on availability. Preyed upon by invertebrate predators.
BOSMINA, BAIRD 1846.
First antenna not united at base, parallel to each other.
Asplanchna feed on larger particles like
Bosmina, cathching them individually (Sládeček 1983).
The genus was represented in Taal Lake in a number of 30 individuals/L in December.
- Taal Lake
Bosmina sp.
[2005a]
Bosmina sp, Taal Lake (Photo: Rey Donne S. Papa, 2007)
BOSMINA BOSMINA Baird, 1845 (subgenus)
96 a. Claw on postabdomen proximally with 3-4 long spines
increasing in length distally. After these follows
2-6 small spines and 15 very fine spines. Frontal
sense hair midway between the junction of first
antenna and eye. Lateral head pore close to ventral
rim of triangular extension of head shield, close
to insertion of 2nd antenna. Size up to 620 μm.
Planktonic in lakes. Kořínek found only B. fatalis
in the 1970-71 Lake Lanao-samples, and this is almost
certainly identical with Woltereck's (1941a)
B. longirostris, se Lewis (1979b). Negatively affected
by bloom of green algae Botryococcus braunii blooms
in Paoay Lake (Papa et al., 2007a, 2008d).
The populations of B. longirostris in the tropics are
most probably sibling species of that described by
O. F. Müller from Danish rivers (Kořínek, 2002a). Common.
- Danao Lake, Ponds around Lake Lanao, Paoay Lake, Taal Lake.
- Lake Lanao, Paoay Lake.
Bosmina longirostris (MÜLLER, 1785).
[1928a, 1934a, 1938c, 1941a, 1969, 1978a+b, 1986a,2000?, 2001a, 2003b, 2008b+d+e, 2011a+b+c]
Note: B. longirostris has in India been a misidentification of the superficially similar Bosmina tripurae KOŘÍNEK, SAHA & BHATTACHARYA, 1999. With lateral head pore pattern as in B. fatalis. The postabdomen claw with basal pecten of 7-9 spines, growing in size distally and, like B. longirostris, with a dorsal row of small, sturdy spines (spinules). Distributed in India (lowland), China, Japan and Indonesia and probably New Zealand (Kořínek, 2002; Kořínek et al., 1999, Taylor et al., 2002)
BOSMINA SINOBOSMINA Lieder, 1957 (subgenus)
Only one species.
96 b. Claw on postabdomen proximally with 6-8 spines increasing in
length distally, continuing in very fine spines to the tip of the claw. Frontal sense hair near the junction of the first antenna with the head. Lateral head pore shifted dorsally, over mandibular articulation. Size of adult female 370-500 μm. Shows a remarkable affinity for cryptomonads in Lake Lanao (Lewis 1979b). In lakes and reservoirs. Planktonic in Lakes. Common. (Figures 96b1, 96b2)
- Laguna de Bay, La Mesa Dam, Sampaloc Lake, Tadlac Lake.
Naujan Lake, Lake Lanao.
Bosmina fatalis, BURCHARDT, 1924.
[1934 (form philippinensis), 1938c, 1941a, 1954, 1978a+b+d,
1979b, 1980, 1984a, 1986a,2000a, 2001a, 2001a, 2008e, 2011a+b+c]
B. fatalis from Laguna de Bay
B. B. sp (Foto: Rey Donne S. Papa)
BOSMINOPSIS, (RICHARD 1895)
First antenna united at base and diverging
from each other.
97 a. Only one species. Size 500 μm.
In lakes and reservoirs.
Rare.- Laguna de Bay (?), Naujan Lake, Lake Lanao (?), Davao Lake.
Bosminopsis deitersi, RICHARD, 1895
[1934, 1938c, 1941a, 1969, 1974, 1978a+b, 1986a, 2000(?)]
To 98a
