φᾰλάγγιον · phalangion — LSJ
a kind of venomous spider, esp. Lathrodectus or malmignatte, Pl. Euthd. 290a, X. Mem. 1.3.12, Thphr. HP 8.10.1, Diocl. Fr. 145; distd. from ἀράχνιον, Arist. HA 622b28, cf. 555b12.
spider-wort, Lloydia graeca, a herb, said to cure this spiderʼs bite, Dsc. 3.108.
log or roller put under a ship, Hsch., Eust. 140.9, 469.20: written φᾰλαγγ-εῖον, EM 786.45.