[1] Same or similar glossing in other lexica, and in a scholion on Plato, Erastai [Lovers] 135E. According to LSJ s.v., the nominative is sigu/nhs or si/gunos, often written (as in the accusative plural transmitted here) with double nu.
[2] Greek Anthology 6.93.2-3 (ascribed to Antipater of Sidon) with scholion, quoted already at pi 1736; the correct reading may be sibu/nhn "hunting spear" (cf. sigma 363). On this epigram, a retiring hunter's dedication, see Gow and Page vol. I (32-33) and vol. II (45-46). As Gow and Page note (vol. I, 32), the Anthologia Palatina (AP) attributes this epigram to Antipater of Sidon. However, because it appears in sequence within the Garland of Philip, the epigram must in fact be credited to Antipater of Thessalonica; cf. vol. II (21). Indeed, the AP scribe designated C (the Corrector) seems to have caught the mistake in attribution and properly credits the later Antipater, the Thessalonican (vol. I, 32; vol. II, 45).
[3] Greek Anthology 6.176.1 (Macedonius the Consul). See another quote from this epigram at alpha 917.