Polybranchia samanthae Medrano, Krug, Gosliner, Biju Kumar & Valdés, 2018

ポリブランチア・サマンサアエ Polybranchia samanthae
Photographed by
石川雅教
Location
Sunabe No.1, Hontou (West coast), Okinawa, Japan
Date
2012/05/11
Length
10mm
Depth
5.0m
Water temperature
25.0℃

MORPHOLOGY

Colour pale olive-green to tan or brown, with evenly distributed small white papillae on dorsum. Rhinophores translucent with white frosted dorsal tips and several white papillae evenly throughout. Snowy white pigment below eyespots extends towards snowy white pericardium. Cerata translucent, olive-green or dark tan in colour; dorso-medial surface with large green patch enclosed by dense white pigment. White colour extends from distal tip and stops before ceratal base; diminishes before reaching white margin. Two medial papillae, one large and one small, white, made inconspicuous by white dorso-medial surface on cerata. Peduncle depression lacks colour. Few white dots and many small, dark-brown spots on foot.

DISTRIBUTION

Widespread in the Indo-Pacific

References

  • Medrano S., Krug P.J., Gosliner T.M., Biju Kumar A. & Valdés Á. (2018). Systematics of Polybranchia Pease, 1860 (Mollusca: Gastropoda: Sacoglossa) based on molecular and morphological data. Zoological Journal of the Linnean Society. , available online at http://10.1093/zoolinnean/zly050/5077298