A comparative morphological study of the kinorhynch genera Antygomonas and Semnoderes (Kinorhyncha: Cyclorhagida)

Table 1 Measurements of adult Semnoderes armiger from Tjärnö, Sweden, including number of measured specimens (n) and standard deviation (SD)

Character	n	Range	Mean (μm)	SD (μm)
TL	12	372–500 μm	418	34.38
MSW-5	1	56 μm	–	–
MSW-5/TL	1	11.2%	–	–
SW-10	1	44 μm	–	–
SW-10/TL	1	8.8%	–	–
S1	12	41–54 μm	48	4.06
S2	12	20–33 μm	27	4.62
S3	12	25–38 μm	33	4.00
S4	12	30–40 μm	36	3.51
S5	12	31–45 μm	38	3.78
S6	12	32–46 μm	42	4.17
S7	12	38–50 μm	44	3.61
S8	12	39–56 μm	48	5.21
S9	12	42–58 μm	50	4.74
S10	11	43–51 μm	47	2.81
S11	10	35–41 μm	37	1.96
MD 1	11	30–40 μm	34	3.29
MD 2	12	32–43 μm	37	3.08
MD 3	12	37–49 μm	41	3.48
MD 4	12	40–51 μm	44	4.27
MD 5	11	41–54 μm	48	4.43
MD 6	12	41–56 μm	49	4.75
MD 7	12	48–61 μm	54	3.87
MD 8	12	49–62 μm	57	3.83
MD 9	11	56–77 μm	67	6.47
MD 10	9	59–80 μm	70	6.48
MD 11	12	133–199 μm	168	19.35
LV 2 (cu)	12	20–31 μm	25	3.37
LV 2 (ac)	5	11–13 μm	12	0.71
LV 3 (ac)	12	30–41 μm	36	3.33
LV 4 (ac)	9	31–47 μm	39	5.63
LV 5 (cu)	12	21–30 μm	28	2.71
LV 5 (ac)	12	39–47 μm	44	2.71
LA 6 (cu)	12	23–33 μm	28	2.78
LV 6 (ac)	12	36–54 μm	48	5.28
LV 7 (ac)	11	40–57 μm	51	5.03
LA 8 (cu)	12	22–34 μm	28	3.58
LV 8 (ac)	12	46–56 μm	50	3.26
LV 9 (cu)	11	24–37 μm	31	4.21
LV 9 (ac)	11	49–61 μm	54	3.56
LV 10 (ac)	12	45–72 μm	57	7.94
LTS	12	73–103 μm	88	9.63
LTAS	12	121–153 μm	134	10.48
MTS	12	466–644 μm	568	63.82

ac acicular spine, cu cuspidate spine, LA lateral accessory, LTAS lateral terminal accessory spine, LTS lateral terminal spine, LV lateroventral, MD middorsal, MSW-5 maximum sternal width (on segment 5), MTS midterminal spine, S segment lengths, SW-10 standard width (on segment 10), TL trunk length

ISSN: 1438-3888