Lampito mauritii · Part 3

Nephridiopores are numerous and found throughout the body of the earthworm except a few anterior segments, through which the metabolic wastes are eliminated. Table . : Morphological and anatomical differences between Lampito mauritii and Metaphire posthuma S.No Characters Lampito mauritii Metaphire posthuma . Shape and size Cylindrical mm – mm in length .5mm - . mm in width Cylindrical – mm in length mm in width . Colouration Light Brown Dark Brown . Segmentation – Segments About Segments . Clitellum th – th Segments ( ) th – th Segments ( ) . Spermathecal opening Three pairs / , / and / Four pairs / , / , / and / . Pharynx rd – th segment Runs up to th Segment . Oesophagus th segment th segment . Gizzard th segment th – th segment . Intestine th segment to anus th segment to anus . Intestinal caeca Absent Present in th segment . Lateral hearts pairs from th to th segments pairs from th to th segments . Pharyngeal nephridia th _ th segment th – th segment . Micronephridia th to last segment th to last segment . Meganephridia th to last segment th to last segment . Male genital pore th segment th segment . Female genital pore th segment th segment E 'RUVDOYLHZ F 9HQWUDOYLHZ &OLWHOOXP 'RUVDO SRUHV 0RXWK               )HPDOH JHQLWDOSRUH 3URVWRPLXP 2SHQLQJV RIVSHUP DWKHFDH 0DOH JHQLWDOSRUH 6HWDH 3HULVWRPLXP D (QWLUH G %RG\ VHWDH $QXV &OLWHOOXP 3URVWRPLXP Figure . Lampito mauritii XI Std Biology-Zoology Chapter- of columnar cells and glandular cells. The alimentary canal opens to the exterior through the anus. The ingested organic rich soil passes through the digestive tract where digestive enzymes breakdown complex food into smaller absorbable units. The simpler molecules are absorbed through the intestinal membrane and