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A sea butterfly.

[From New Latin Pteropoda, former order name : Greek pteron, feather, wing; see -pter + New Latin -poda, -pod.]

pter′o·pod′ adj.
pte·rop′o·dan (tə-rŏp′ə-dən) adj. & n.


(Animals) any small marine gastropod mollusc of the group or order Pteropoda, in which the foot is expanded into two winglike lobes for swimming and the shell is absent or thin-walled. Also called: sea butterfly


(ˈtɛr əˌpɒd)

1. belonging or pertaining to the Pteropoda, a group of gastropod mollusks having a foot with winglike lobes used in swimming.
2. a pteropod mollusk.
[1825–35; < New Latin Pteropoda (pl.); see ptero-, -pod]
References in periodicals archive ?
Ray, who researches pteropods (sea snails), resents his co-leader, Jackson Oakley, for his success in presenting his climate change discoveries; meanwhile, chemistry student Helen sees Oakley, her secret lover, distancing himself as his fame grows.
Eight groups accounted for 95% of total abundance both in January (copepods, chaetognaths, euphausiids, amphipods, polychaetes, pteropods, fish larvae and decapods) and May (copepods, amphipods, chaetognaths, euphausiids, decapods, pteropods, fish larvae and gasteropods).
Some corals, pteropods, bivalve molluscs and calcifying phytoplankton may be particularly sensitive to these changes in seawater chemistry.
It's dissolving the shells of tiny free-swimming marine snails, called pteropods, which provide food for pink salmon, mackerel and herring, according to research published by OSU.
If the current trajectory of sea ice loss continues (see section 5f), it is likely that larger areas of the Canada Basin will be inundated with waters that are undersaturated in aragonite, making them potentially corrosive to shell building organisms like pteropods (Bednarsek et al.
Pteropods are an important food source for salmon, herring, mackerel, and other fish in the Pacific Ocean.
It already is dissolving tiny plankton, called pteropods, in Antarctica that are eaten by many ocean creatures -- and that wasn't expected for 25 years.
Pteropods, a valuable food source to both fish and birds, are one of the few species that build their shells from aragonite in the Antarctic Ocean.
The alarming situation came into light when Tarling and colleagues captured free-swimming sea snails called pteropods from the Southern Ocean in early 2008 and found under an electron microscope that the outer layers of their hard shells bore signs of unusual corrosion.
In the deepest block (I) surficial sediments were classified as Globigerina clay devoid of an oxidized layer, whilst the adjacent block (II) contained an assorted biogenic hemipelagic biota (foraminifera, pteropods, scaphopods, micromolluscs, and echinoid and sponge spicules) and a discrete oxidized layer.
nodosa may be able to respond behaviorally to actively reduce or compensate for shell loss, as has been suggested for pteropods (Lischka et al.
145) Awareness of ocean acidification is difficult to promote in terms of public perception because fish, pteropods, and algae are not necessarily the warm and cuddly creatures on activists' radar.