Term
|
Definition
Class Caudofoveata (worm-like)
Class Monoplacophora
Class Polyplacophora (chitons)
Class Scaphopoda
Class Gastropoda (snails, slugs, whelks)
Class Bivalvia (Oysters, mussels, clams)
Class Cephalopoda (squids, octopus, nautilus) |
|
|
Term
|
Definition
Phylum Mollusca
Class Polyplacophora
Family Mopaliidae
Genus Chaetopleura (italics) |
|
|
Term
|
Definition
| 8 overlapping dorsal plates secreted by mantle |
|
|
Term
|
Definition
| locomotion and attachment |
|
|
Term
|
Definition
Phylum Mollusca
Class Bivalvia (two valves)
Order Schizodonta
Genus Anodonta |
|
|
Term
|
Definition
| attach the two valves of the shell |
|
|
Term
|
Definition
|
|
Term
|
Definition
| outer horny layer of the valve |
|
|
Term
| which side is the hinge on in clams? |
|
Definition
|
|
Term
| where are the siphons located on clams? |
|
Definition
|
|
Term
| function of adductor muscles in clam |
|
Definition
|
|
Term
| function of retractor muscles in clam |
|
Definition
|
|
Term
| function of protractor muscles in clam |
|
Definition
| compresses visceral mass to extend foot |
|
|
Term
| function of labial palps in clam |
|
Definition
attached to anterior end of visceral mass
left and right labial palps join anteriorly to form a protective lip for the slitlike mouth
palps secrete a great amount of mucus and are ciliated to guide food trapped in the mucus towards the mouth |
|
|
Term
| clam respiration occurs in... |
|
Definition
|
|
Term
| Reproductive system of clams |
|
Definition
gonads discharge gametes into suprabranchial chamber
spermatozoa carried into surrounding water and enter female with inhalant current and fertilize eggs in suprabranchial chamber
bivalved larval form = glochidium |
|
|
Term
| bivalved larva form of clam |
|
Definition
|
|
Term
|
Definition
Phylum Mollusca
Class Gastropoda
Order Stylommatophora
Genus Helix (italics) |
|
|
Term
| to what part of the clam shell does the snail apex correspond? |
|
Definition
|
|
Term
|
Definition
right handed shell
apex of shell upward and aperture pointing you, aperture should be on right side |
|
|
Term
|
Definition
left-handed shell
apex of shell upward and aperture pointing you, aperture should be on left side |
|
|
Term
|
Definition
1. outer periostracum
2. prismatic layer
3. nacre layer |
|
|
Term
|
Definition
opening on shell
opens into highly vascular portion of the mantle cavity, important for respiration in terrestrial snails |
|
|
Term
|
Definition
| series of teeth attached to ribbon-like organ that moves rapidly back and forth with a rasping action |
|
|
Term
|
Definition
Phylum Mollusca
Class Cephalopoda
Order Decapoda
Genus Loligo (italics) |
|
|
Term
|
Definition
| head region with tentacles that represent modification of the foot |
|
|
Term
| function of muscular funnel/siphon in squid |
|
Definition
| water forced through funnel by muscual contraction of the mantle furnishes the power for "jet propulsion" locomotion |
|
|
Term
|
Definition
|
|
Term
|
Definition
found in the female
large white glands that secrete the outer capsules of egg masses |
|
|
Term
| Respiratory and circulatory systems of squid |
|
Definition
branchial hearts at the base of each gill
blood from branchial hearts carried to gills by afferent branchial vein and returned by efferent branchial vein to the systemic (true) heart which lies between the branchial hearts |
|
|
Term
|
Definition
| chitinous pen lies ventral to the visceral organs |
|
|
Term
| Type of body cavity in Mollusca? |
|
Definition
| Coelom/pericardial cavity |
|
|
