Table 2.

Fragmentation series of syllids

Species	Formula	Reference
Procerastea halleziana	H7+2+2+2+3+3+3+4+4+4+4(+4)+3+3+3+3+x(+3)+nP	Allen, 1923
Myrianida prolifera	H7+2+2+2+3+3+3+4+4+4+4+4+3+3+4+4+4+25P
	H13+3+3+3+4+4+x(+3)+12P	Allen, 1927a
Myrianida inermis	H9+2+2+3+3+3+4+nS	Allen, 1927a
	H9+2+2+3+3+3+4+4+4+14P
	H11+2+3+3+3+4+4+4+4+4+3+3+7P
Myrianida edwarsi	H7+2+2+2+3+3+3+4+4+nS	Allen, 1927a
	H11+2+3 + 3+3+4+4+4+3+nS
Myrianida pinnigera	H13 +3 +3+3+4 +4 +4 +3 +3 +4 +4 +4 +4 +4 +4 +3 +3+3+(…)+nP	Okada, 1929
Proceraea picta	H9+2+2+3+3+3+4+4+4+4+4+3+3+4+4 +4+4+4+4+1+3+5P	Allen, 1927a
Epigamia macrophtalma	H7+2+2+2+3+3+3+4+4+4+4+4+3+3+4+4+4+4+4+4+4+4+4+11P	Allen, 1927a
	H7+2+2+2+3+3+3+4+4+4+4+4+3+3+4+4+4+4+4+4+4+4+4+6P
Synmerosyllis lamelligera	H9+2+2+3+3+3+4+3+4+2+2+6P	Allen, 1927b
Nudisyllis divaricata	H9+4+3+3+3+4+5+4+3+4+4+4+5P	Okada, 1929
Trypanosyllis zebra	H24+4+4+4+6+8+4+6+4+18+6+6+12+3+4+39P	Okada, 1929
	H24+4+4+4+6+8+4+6+4+18+6+6+12+3+4+nS

The fragment with the prostomium is represented by H and the number of segments, and the last fragment, with the pygidium is represented by the number of segments and P, adapted after Allen (1923). H, head; P, pygidium; nS, number of segments corresponding to stolon; nP, variable number of segments plus pygidium.