. KEY TO THE FORMS OF STENOPID LARVAE HERE DESCRIBED a. Median ventral hook on abdominal somite 5. b. Abdominal somite 3 without dorsal spine bb. Abdominal somite 3 with dorsal spine. c. Rostrum smooth, or with minute spinules ... cc. Rostrum with small teeth near end aa. No median ventral hook on abdominal somite 5. b. Abdominal somite 3 without dorsal spine. c. Rostrum very short; abdominal somites i, 4, 5 without pleural spines cc. Rostrum long; pleural spines on all somites Stenopus sp. II. Stenopus hispidits. Stenopus sp. III. Stenopid I. Stenopid II.

---

Size: 2673px × 1870px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti