Neoandracantha peruensis n. gen. n. sp. (Acanthocephala, Polymorphidae) described from cystacanths infecting the ghost crab Ocypode gaudichaudii on the Peruvian coast

Omar M. Amin; Richard A. Heckmann

doi:10.1051/parasite/2017038

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Volume 24 (2017)

Parasite, 24 (2017) 40

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Research Article

Table 4

Chemical elements for 3 levels (tip, middle, base) of gallium cut hooks of Neoandracantha peruensis.^a

	Hook edge		Hook center

	Weight %	Atomic %	Weight %	Atomic %
Hook tip
Magnesium (Mg)	1.02	0.84	1.08	0.60
Phosphorus (P)	12.70	8.25	15.28	10.70
Sulfur (S)	2.50	1.50	1.05	0.75
Calcium (Ca)	26.41	13.17	34.31	18.56
Hook middle
Mg	0.26	0.21	0.93	0.81
P	7.84	4.77	14.91	10.28
S	6.20	3.64	0.28	0.19
Ca	20.80	9.78	34.03	18.14
Hook base
Mg	0.75	0.69	0.82	0.74
P	14.79	10.65	14.70	10.53
S	0.32	0.22	0.20	0.14
Ca	36.92	20.55	37.23	20.61

^a

List includes four critical elements for the hardening of hooks (Mg, P, S, Ca). The other elements, carbon (C) and oxygen (O) are common in all living animals; gold (Au) and palladium (Pd) are used to coat the specimen in an 18 nm layer. Gallium (Ga) is the ion used to cut the specimen.

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