Review of the concept of Profilicollis Meyer, 1931 with a description of Profilicollis rancoensis n. sp. (Acanthocephala: Polymorphidae) from the freshwater crab, Aegla abtao Schmitt, 1942 (Decapoda: Anomura) in Chile, with a key to congeneric species

Open Access

Table 4

Elemental weight percent of Na, Mg, P, S, K, and Ca (as reported by TEAM EDXA software) of hooks and spines of cystacanths of Profilicollis rancoensis n. sp. from Aegla abtao in Chile, at 6 hook sites. Weight percentages of other elements (C, N, O, Al, Fe, Au, Pd, and Ga) are omitted.

Element^*	Parts
	Anterior hooks
	Tip edge	Tip center	Middle center	Middle edge	Base edge	Base center
Sodium (Na)	0.13 ^**	0.12	0.02	0.03	0.05	0
Magnesium (Mg)	0.41	1.16	1.12	0.46	0.35	0.60
Potassium (K)	0	0	0	0	0	0.08
Phosphorus (P)	5.16	16.75	22.08	8.79	8.49	21.4
Sulfur (S)	27.78	1.97	0.02	8.76	3.52	0.19
Calcium (Ca)	7.56	35.28	46.67	14.09	14.99	49.67
	Middle hooks
Sodium (Na)	0.14	0.33	0.03	0.20	0.13	0.01
Magnesium (Mg)	0.26	0.85	1.89	0.98	1.03	1.30
Potassium (K)	0.14	0.27	0.08	0.10	0.04	0.13
Phosphorus (P)	2.67	9.90	22.48	10.57	12.57	20.72
Sulfur (S)	31.23	14.44	0.10	12.30	2.07	0.10
Calcium (Ca)	3.18	19.42	46.09	17.93	24.14	45.78
	Posterior hooks
Sodium (Na)	0.12	0.12	0.05	0.05	0.02	0.06
Magnesium (Mg)	0.18	0.57	0.26	0.18	0.15	0.31
Potassium (K)	0.10	0.05	0.10	0.06	0.10	0.04
Phosphorus (P)	5.30	20.05	21.41	9.34	15.37	20.91
Sulfur (S)	17.70	1.16	0.25	9.34	2.69	0.10
Calcium (Ca)	11.91	45.70	50.93	17.95	39.11	51.27
	Whole anterior hook & longitudinal section of middle hook
Sodium (Na)	0.04 & 0.02
Magnesium (Mg)	0.17 & 1.73
Potassium (K)	0 & 0.17
Phosphorus (P)	4.39 & 23.73
Sulfur (S)	3.59 & 0.18
Calcium (Ca)	8.65 & 48.47
	Spines (middle & longitudinal sections)
Sodium (Na)	0.33 & 0.86
Magnesium (Mg)	0.58 & 0.22
Potassium (K)	0 & 0
Phosphorus (P)	0 & 1.33
Sulfur (S)	0.51 & 1.61
Calcium (Ca)	0.87 & 0.62

Common protoplasmic elements (C, N, O) and processing elements (Au, Pd, Ga) are omitted.

^**

The bolded weight percentages of the anterior hooks are presented in Figure 5 (23–25).

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