Free-Living Nematodes from Hot Springs in China and Formosa. 25
Aphelenchus parietinus Bastian, 1865.
(Pl. 12, Fig. 27).
One male from Changchow, wall of the well in a bath-house, five feet alooove the water. Water temperature 39° C.
Length: 4.46 mm.
K-46. B-7.2. 8-15.3. n-I.
Six females from Foochow, Tang Men Wai Ti Yi Ch'uan (First Spring outside Tang Gate).
Length: 0.43 (0.38-0.48) mm.
∞ -35.6 (34-5-36.9).
B-7.9 (7.7-8.1). 8 -94 (7.0-11.8).
n-6.
A. parietinus has been carefully described by Micoletzky. Therefore we give only our measurements and the drawing of the anterior end in frontal view (Figure 27). We found a row of six papilla and six minute stiffenings arranged around the spear.
Trilobus allophysis (Steiner), 1919,
Three males and fifteen females, Wen Ch'uan near Peiping. Wall of a stone tank for storing water. Water temperature 34° C.
Males:
Length: 1.0 (0.9-1.1) mm.
∞—33·5 (32-34-5). B−5·3 (4.5-5.5). X-9.1 (8.1-10,1),
Females:
Length: 1.1 (0.96-1.4) mm.
カー -3.
1—15.
33.3 (31.6.35). B-4-7 (4-4-5-5) -7.5 (6.8-10.3).
Larval Forms. Dorylaimus sp.
Three specimens, Tangshan near Nanking, overflow of a hot spring, water temperature where collected about 50° C.
35° C.
Length: 1.1 mm.
α-20. B-47. -6.2. Average of three. Two specimens, Sozan, Formosa, sulphur spring, water temperature
Length: 0.75 mm.
-35. B-3.6. Ye-5.5. Average of two.
Microluimus sp.
Four larva, Changchow, wall of a well, 13 feet above the water. Water temperature 48.5° C. Specimens not measured.
DISCUSSION.
It is a general conception and has been specially pointed out by
Supplement No. 1, 1932.
105