Supplement to Lab Topic 18: Animal Diversity II

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Map of Stations

[Front of Room]

1A, 1B, 1C	2A, 2B, 2C	3A, 3B, 3C	4A, 4B, 4C	5A, 5B, 5C
6A, 6B, 6C	7A, 7B, 7C	8A, 8B, 8C	9A, 9B, 9C	10A, 10B, 10C
11A, 11B, 11C	12A, 12B, 12C	13A, 13B, 13C	14A, 14B, 14C	15A, 15B, 15C
16A, 16B, 16C	17A, 17B, 17C	18A, 18B, 18C	19A, 19B, 19C	20A, 20B, 20C

[Back of Room]

Boxes in above table refer to desks.

Materials should be arranged in the order presented in your lab text.

Please let us know if there is a discrepancy or other problems.

Please be aware that you don’t necessary have to begin at station 1.

Please pay attention to suggested microscope magnifications (below)

(too-high magnification can be as misleading as too-low magnification).

Specimen List

Page	Sect.	Section Title	Stat.	Specimen	State	Container	Scope	Comments
467	18.1	Phylum Mollusca	1	Clams	Preserved	Dissection pan	None	Follow directions in text
467	18.1	Same as above	6A	Various gastropods	Preserved	None	None	Observe diversity; do not draw
467	18.1	Same as above	6C	Snail radula w.m. Z1410	Slide	None	Compound	Observe (100x); don’t draw; what does the snale use its radula for?
467	18.1	Same as above	11A	Various Polyplachophorans	Preserved	None	None	Observe diversity; do not draw
467	18.1	Same as above	11B	Various bivalves	Preserved	None	None	Observe diversity; do not draw
467	18.1	Same as above	11C	Various cephalopods	Preserved	None	None	Observe diversity; do not draw
471	18.2.A	Phylum Arthropoda	2	Crayfish	Preserved	Dissecting pan	None	Follow directions in text
471	18.2.A	Same as above	9A	Crustaceans	Preserved	None	None	Observe diversity; do not draw
471	18.2.A	Same as above	9C	Daphnia w.m. Z1655	Slide	None	Compound	Observe; do not draw; 100x
474	18.2.B	Same as above	12	Grasshopper	Preserved	Dissecting pan	None	Follow directions in text
474	18.2.B	Same as above	17A	Uniramians	Preserved	None	None	Observe diversity; do not draw
474	18.2.B	Same as above	17B	Chelicerates	Preserved	None	None	Observe diversity; do not draw
474	18.2.B	Same as above	17C	Tick and Mite w.m. Z1790	Slide	None	Dissecting	Observe; do not draw
---	---	Phylum Echinodermata	3A	Various echinoderms	Preserved	None	None	Observe diversity; do not draw
477	18.3	Phylum Chordata	3C	Various tunicates	Preserved	None	None	Observe diversity; do not draw
477	18.3	Same as above	8A	Lancelet x.s. amphioxus	Slide	None	Dissecting	Draw
477	18.3	Same as above	8B	Lancelet Z1217 Amphioxus	Slide	None	Dissecting	Follow directions in text for observing preserved whole; feel free to observe preserved whole under scope
477	18.3	Same as above	8C	Angnathans	Preserved	None	Dissecting?	Observe and compare to lancelets; note how the agnathans are barely vertebrates
---	---	Same as above	4	Chondricthyes	Preserved	None	None	Observe diversity; do not draw
---	---	Same as above	9	Osteichthyes	Preserved	None	None	Observe diversity; do not draw
---	---	Same as above	14a	Amphibians	Preserved	None	None	Observe diversity; do not draw
---	---	Same as above	14b	Reptiles	Preserved	None	None	Observe diversity; do not draw
---	---	Same as above	19A	Aves	Preserved	None	None	Observe diversity; do not draw
---	---	Same as above	19C	Mammals	Preserved	None	None	Observe diversity; do not draw

Choice of containers:

· Concave slide: Use a concave slide when a normal slide will crush the specimen (e.g., Volvox)

· Dish (observe in): Many specimens will need to be removed from their containers to observe; an appropriate dish will be supplied for pouring the specimen into; please use a dish for this purpose only if you are instructed to (Laboratory prep person: please supply dishes and label specimens that should or should not be observed in dishes)

· Dissection pan: Any dissections will be done in a dissection pan; you will obtain specimens for dissections from stations then bring those specimens, in a dissection an, back to your desk; if the specimen is presented to you in a dissection pan, then that specimen should be observed at the station but not extensively dissection (i.e., poking and otherwise manipulating is OK, but cutting, etc., is not)

· Petri dish: Normally a petri dish will be employed if that is what the specimen is supplied in

· Slide (microscope): Use a slide when the specimen is relative small and will be observed using a compound scope

· No container: Some items are suffiently large or are already mounted such that a container is not necessary

Choice of microscopes:

· Compound microscope: Use for observing relatively small specimens

· Dissection (stereoscopic) microscope: Use for observing the fine structure of relatively large specimens

· Phase-contrast microscope: Use for observing especially living bacteria

· No microscope: Some items are sufficiently large or its fine structure sufficiently inaccessible that we will not employ microscopic observation