> as lemmas
ˌheteroˈsyllis
ˌheteroˈsyllis n. 
/ˌhɛdərəˈsɪlᵻs/ Zoology a breeding form of worms of the family Syllidae.
Brit. /ˌhɛt(ə)rə(ʊ)ˈsɪlɪs/
, /ˌhɛt(ə)rə(ʊ)ˈsɪlɪs/U.S. /ˌhɛdəroʊˈsɪlᵻs/
, /ˌhɛdəroʊˈsɪlᵻs//ˌhɛdərəˈsɪlᵻs/ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > class Chaetopoda > order Polychaeta > suborder Nereidiformia > family Syllidae > member of
syllidian1888
heterosyllis1896
syllid1910
fireworm1957
1896 Cambr. Nat. Hist. II. 278 In some genera [of the family Syllidae]..there occur changes quite similar to those characterising ‘Heteronereis’—that is, the posterior segments in which the genital organs exist become altered, so that the worm consists of two distinct regions, and is termed a ‘Heterosyllis’.
1967 H. W. Levi & L. R. Levi tr. A. Kaestner Invertebr. Zool. I. xix. 496 Reproduction is complicated by alternation of sexual and asexual generations... Syllis, 1–5 cm. change [sic] to heterosyllis.
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as lemmas