@article {542,
	title = {Structure, ultrastructure, and function of the terminal organ of a pelagosphera larva (Sipuncula)},
	journal = {Zoomorphology},
	volume = {102},
	year = {1983},
	note = {@ TERMINAL ORGAN IN PELAGOSPHERA LARV USED TO TEMPORAR. ATTACH TO SUBSTRATA, EXAMINED BEHAVIORALLY AND WITH LITE \& ELECTRON MICROS. FOR LARV OF G. MISAKIANA COLLECTED FROM FL. CURRENT. TERM ORG IS RETACTILE ROUNDED KNOB W SHORT NECK JOINING TO TRUNK VIA SHORT NECK. CAN ATTACH DIRECTLY TO SUBST OR SECRETE TETHER-LIKE MUCUS STRAND... IN FREE MOVING LARV TERM ORG OFTEN IN MOUTH. IN 5.5 DAY OLD LARV THERE ARE 29 CELLS IN T.O.; 9 EPIDERM, 3 MUCUS, 2 TENSION BEARING, 5 SENSORY, 10 RETRACTOR MUSC. \& 1 UNKNOWN. MUCUS CELLS PRODUCE ADHESIVE... TENSION BEARING CELLS WITH MICROFILAMENTS CONNECT W RETS THAT ORIGINATE NEAR ANUS. ... T.O. COMPARED TO OTHER METAZAN ADHESIVE ORGANS \& ASSUMED TO BE INDEPEN. EVOLVED WITHIN SIPS. CONSIDERED AS ADAPTATION IN YOUNG LARV FOR PROTECTIVE ATTACHMENT \& FACILITATION OF FEEDING, WHEREAS, IN OLDER LARVAE IT MAY ONLY FUNCTION IN SUBSTRATE EVALUATION PRIOR TO SETTLEMENT.},
	pages = {143-163},
	keywords = {histology, larva, terminal organ},
	author = {Ruppert, E. E. and Rice, M. E.}
}
