Gasterosteus ductor [ spec. nov.]

G. spinis dorsalibus quatuor. @/B. 7. D. 4, 27. P. 18. V. 6. A. 16. C. 19.

Hasselqv. iter. 366. Scomber Ductor. @/D. {4/28}. P. 20. V. 5. A. 16. C. 16.

Osbeck. iter. 73. Scomber Ductor. @/D. {3/30}. P. 19. V. 5. A. 16. C. 26.

- - Act. Stockh. 1755. p. 71. idem.

Habitat in Pelago, Satelles Squali.

Medius quasi inter Gasterosteos & Scombros; at convenit cum illis spinis ante pinnam dorsalem distinctis & cum G. Pungitio caudae lateribus carinatis, quamvis differat a Gasterosteis Membrana branchiostega.