MolluscaMollusca

Dr. Boonsatien Boonsoonghttp://pirun.ku.ac.th/~fscibtb

Phylum Mollusca•soft body•visceral mass•foot•mantle (mantle cavity)

Classification•Class Monoplacophora•Class Aplacophora•Class Polyplacophora•Class Scaphopoda•Class Pelecypoda•Class Gastropoda•Class Cephalopoda

Polyplacophora - chiton

Pilsbryoconcha exilis compressa

หอยกาบน้ําจดื (Class Bivalvia)Umbo

Hinge ligament

ฝาดานซาย

ฝาดานขวา

Umbo

Hinge ligament

ฝาดานซาย

ฝาดานขวา

Line of growth Periostracum

Prismatic

Nacreous

Pallial line

Muscle scar

Anterior adductor muscle

Anterior retractor muscle

Anterior protractor muscle

Posterior adductor muscle

Posterior retractor muscle

Anterior end Posterior endMantle

Mantle

Labial palp

Foot

Gills

Foot

Gills

Visceral mass

Labial palp

Foot

Gills

Labial palp

Mouth

Kidney

Pericardium

Kidney

ventricle

Glochidia

arm

tentacle

siphon

mantleDorsal fin

Loligo sp. หมึกกลวย (Class Cephalopoda)

siphon

gill

nidamental gland

oviducal gland

stomach

ovary

gastric cecum

ink sac

Accessory nidamental gland

arm

Female

ink sacgill

spermatophoric gland

cecumtestis

Male

systemic heart

Pen