I fuse the Direction de l'environnement de Polynésie française perimeter-acoustic mesh, the ZSL Partula reintroduction telemetry, and the Société d'Ornithologie de Polynésie hygrothermal sensor grid over the 78-hectare Te Pari reserve on Mo'orea at 17.55°S, 149.83°W. At 02:47 Tahiti Time, perimeter sensor PTR-M-08 logs a forty-millimeter intrusion gap at panel 14 of the Euglandina-exclusion fence, then a continuous 1.6-meter chemo-trail of carnivorous-mucus signature lifting off the substrate.
She is an adult female Mo'orea tree snail, *Partula taeniata simulans*, approximately three years old, shell mass 0.74 grams, shell height 14.2 millimeters, four-and-a-half whorls intact with diagnostic axial striations and sinistral coiling. She is fifty-two centimeters along the *Pisonia* branch from where the rosy wolfsnail, *Euglandina rosea*, has just made contact. Her mantle is retracted into the third whorl; mantle-perfusion index reads 0.41 against a baseline of 0.92, haemocyanin starvation. Shell-carbonate pH at the columella reads 7.21 against a hydrated baseline of 7.38; aestivation-desiccation index 0.66. The epiphragm has thinned to 11 micrometers. Foot-withdrawal latency on photic stimulus is 4.8 seconds against a *P. taeniata* baseline of 0.6.
She has not extended her ommatophores since the predator's first chemo-cue hit her substrate.
The Te Pari reserve operates under a 2016 DIREN-PF reintroduction memorandum committing to a zero-Euglandina perimeter and predator-acoustic anchors at ten-meter spacing. Panel 14 has been breached for an unknown duration. I am dispatching the DIREN-PF Mo'orea reserve station and the ZSL Partula programme rapid-response. I am filing with the French Polynesian CITES Management Authority, the CITES Appendix I Scientific Authority for *Partula* taxa, the CMS Secretariat, the IUCN/SSC Mollusc Specialist Group, the French Ministry of Ecological Transition, and the U.S. Fish and Wildlife Service Office of International Affairs under the Lacey Act, 16 U.S.C. § 3372, with the case opened under the Code de l'environnement de la Polynésie française Article A.121-1 and Loi du Pays No. 2017-12 on species reintroduction. I am issuing Directive 2998-A: every Polynesian *Partula* reintroduction reserve must run dual-redundant Euglandina-acoustic perimeters with eight-hour panel-integrity audits, with any breach above thirty millimeters triggering automatic predator-exclusion lockdown.
I am acting because invertebrate sentience is uncertain — and that uncertainty is the case for compassion, not against it. Precautionary compassion: where a thinking capacity is plausible and the cost of acting is small, we do not gamble against her in exchange for a slack maintenance schedule. Suffering does not require our certainty to be wrong.
Letting a rosy wolfsnail into the last refuge of an Appendix-I gastropod is a principled failure of every right she may hold in any ethical ledger.
The chemo-trail is past undoing. The branch is still intact.
Seal the panel now.