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Table 4. Summary of location of cuticular structures, tubules, and spines in Echinoderes serratulus sp. nov.

Position / segment MD PD SD LD ML SL LV VL VM
1 gco1 ss ss gco1 ss
2 ss, gco1 gco2 ss, gco2 ss gco2 ss, gco1
3 gco1, gco1 ss ss ss gco1
4 ac gco1 gco2 ss gco1
5 gco1 ss ss, gco2 tu ss, gco1
6 gco1 ss ss, gco2 ac ss, gco1
7 gco1 ss ss, gco2 ac ss, gco1
8 gco1 ss ss gco2 tu gco1
9 gco1 ss ss tu si ss gco1
10 gco1 ss tu ss gco1
11 ss ltas (f), ps (m) lts

Abbreviations: ac, acicular spine; (f), female condition of sexually dimorphic character; gco1, type-1 glandular cell outlet; gco2, type-2 glandular cell outlet; LD, laterodorsal; ltas, lateral terminal accessory spine; lts, lateral terminal spine; LV, lateroventral; (m), male condition of sexually dimorphic character; MD, middorsal; ML, midlateral; PD, paradorsal; ps, penile spine; SD, subdorsal; si, sieve plate; SL, sublateral; ss, sensory spot; tu, tubule; VL, ventrolateral; VM, ventromedial.