Search

Start Over Creator De, N. C.

1. A new nematode, Dichelyne alatae sp. n. (Cucullanidae), from Sillaginopsis panijus (Pisces) of West Bengal, India

Creator:
De, N. C. and Maity, R. N.
Format:
print
Type:
model:internalpart and TEXT
Subject:
Dichelyne, Nematoda, Sillaginopsis panijus, and India
Language:
English
Description:
A new nematode, Dichelyne alatae sp. n., is described on the basis of the worms recovered from the intestine of the whiting, Sillaginopsis panijus (Perciformes: Sillaginidae) from the estuary of the river Hooghly at Kalyani, West Bengal, India. Dichelyne alatae differs from congeners in having a small body size, deirids posterior to the oesophagus, short and wide caudal alae at the level of cloacal opening, unequal, alate spicules, a shield-shaped gubemaculum, a different number of caudal papillae and a conical tail with spines in its distal region.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. On the development and life cycle of Spirocamallanus mysti (Nematoda: Camallanidae)

Creator:
De, N. C.
Format:
print
Type:
model:internalpart and TEXT
Subject:
Spirocamallanus, copepods, life cycle, and Mystus
Language:
English
Description:
The development of Spirocamallanus mysti (Karve, 1952) was studied in the copepod hosts Mesocyclops crassus (Fischer) and M. leuckarti (Claus) and in the fish host Mystus viltatus (Bloch). When eaten by copepods the first-stage larvae burrow through the intestinal wall into the haemocoel and there they moulted twice to become the third, infective stage. The first moulting occurred on day 4 p.i. at 18-2ГС (on day 6 p.i. at 16-20"C) and the second moultingoccurred on day 8 p.i. at 18-19.5"C (on day 11 p.i. at 16-20"C. Further development occurred only after reaching the stomach of the fish definitive host. In the fish stomach two more larval moultings occurred, the third on day 15 p.i. and the fourth (final) on day 37 p.i. in “male” larvae and day 67 p.i. in “female” larvae. The individual developmental stages and the morphological changes occurring during development are described in detail.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. Redescription and development of a little known nematode Camallanus xenentodoni (Nematoda: Camallanidae), with a note on a related form

Creator:
De, N. C. and Maity, R. N.
Format:
print
Type:
model:internalpart and TEXT
Subject:
Camallanus xenentodoni, Nematoda, copcpods, life cycle, and India
Language:
English
Description:
The nematode, Camallanus xenentodoni Khan et Yaseen, 1969 recovered from the intestine of the fish, Xenentodon cancila (Ham.) from West Bengal, India was studied by light microscopy. Larval development of this nematode was also studied under laboratory conditions. Two cyclopoid copcpods, Mesocyclops crassus and M. leuckarti maintained at temperatures 28-31.5“C were infected with first-stage larvae from gravid females. In the haemocoelic cavity of the copepod the larvae moulted twice to attain third, infective stage and a phase of growth, development and morphometric changes occurred between the two moults. Detailed descriptions of the adult worms and the three larval stages are given. Data obtained from the morphological and metrical studies of the present adult worms are compared with those available on C. xenentodoni and another related species C. cancelai Gupta et Verma, 1978, which is considered as synonym of C. xenentodoni.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public