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As in this b o o k . N o m e n N u d u m : " n a k e d " n a m e ; a n a m e published w i t h o u t description of its associated t a x o n , a diagnosis necessary t o validate b o t h t h e n a m e and t a x o n involved; abbreviation can be " n . n . , " b u t n o t so used here: see above. N o m e n O b H t u m : forgotten n a m e ; a n a m e unused as a senior s y n o n y m for m o r e t h a n 50 years; a long unused invalid n a m e often literally " f o r g o t t e n " b y t a x o n o m i s t s of t h e g r o u p and generally best left in t h a t c o n d i t i o n .

Infraciliary Lattice: branching filamentous tract or m a t at t h e b o u n d a r y of e c t o p l a s m and e n d o p l a s m , running parallel t o and n o t far from t h e surface of t h e organism's b o d y b u t at a d e e p e r level t h a n t h a t of either t h e epiplasm or t h e layer of striated bands (as k n o w n in Paramecium). • • [IL] Infraciliature: assembly of all k i n e t o s o m e s and associated subpeUicularly located microfibrillar (or m i a o f í l a m c n t o u s ) and m i c r o t u b u l a r structures, b o t h somatic and oral in loc&tion, the argentophilic n a t u r e o f m o s t such organeUes and structures ( n o t t o m e n t i o n their easy revealabiUty, n o w , via electron m i c r o s c o p y ) a n d t h e i r universaUty and stability m a k e t h e infraciUature an ideal system for s t u d y t o gain significant information in areas of m o r p h o ­ genesis, evolution, a n d p h y l o g e n y as weU as in comparative systematics at aU t a x o n o m i c levels.

Gullet: unnecessary t e r m sometimes used for t h e buccal cavity of such ciliates as Paramecium. Haploid: Ν set of c h r o m o s o m e s ; in ciliate life cycles, haploidy is characteristic of " g a m e t i c " or pronuclear (sexual) stages o n l y . H a p l o k i n e t y : once-popular t e r m for t h e infracihary base of a generahzed paroral membrane, especially in ciliates be­ longing t o t h e present subclasses H y m e n o s t o m a t a and Peritricha; typically a d o u b l e row of k i n e t o s o m e s (paired tangentially, as stichodyads) joined in a zigzag p a t t e r n , generally w i t h o n l y t h e o u t e r m o s t basal bodies ciliferous; s o m e w o r k e r s have also used t h e t e r m t o m e a n t h e entire paroral m e m b r a n e , t h e cihated p o r t i o n plus its infra­ ciliary base; in scuticociUates, t h e h a p l o k i n e t y has been described as comprised of o n e , t w o , or t h r e e k i n e t o s o m a l segments (see r e m a r k s u n d e r M e m b r a n o i d ) , d e p e n d i n g o n t h e species u n d e r consideration.